diff --git a/README.md b/README.md
index 6c19be9aa..a47ce7e25 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ Ethereum
 
 Ethereum Go Client © 2014 Jeffrey Wilcke.
 
-Current state: Proof of Concept 5.0 RC9.
+Current state: Proof of Concept 5.0 RC10.
 
 For the development package please see the [eth-go package](https://github.com/ethereum/eth-go).
 
diff --git a/ethereal/assets/debugger/debugger.qml b/ethereal/assets/debugger/debugger.qml
new file mode 100644
index 000000000..9ea131d7d
--- /dev/null
+++ b/ethereal/assets/debugger/debugger.qml
@@ -0,0 +1,215 @@
+import QtQuick 2.0
+import QtQuick.Controls 1.0;
+import QtQuick.Layouts 1.0;
+import QtQuick.Dialogs 1.0;
+import QtQuick.Window 2.1;
+import QtQuick.Controls.Styles 1.1
+import Ethereum 1.0
+
+ApplicationWindow {
+    visible: false
+    title: "IceCream"
+    minimumWidth: 1280
+    minimumHeight: 900
+    width: 1290
+    height: 900
+
+    SplitView {
+        anchors.fill: parent
+        property var asmModel: ListModel {
+            id: asmModel
+        }
+        TableView {
+            id: asmTableView
+            width: 200
+            TableViewColumn{ role: "value" ; title: "" ; width: 100 }
+            model: asmModel
+        }
+
+        Rectangle {
+            color: "#00000000"
+            anchors.left: asmTableView.right
+            anchors.right: parent.right
+            SplitView {
+                orientation: Qt.Vertical
+                anchors.fill: parent
+
+                Rectangle {
+                    color: "#00000000"
+                    height: 500
+                    anchors.left: parent.left
+                    anchors.right: parent.right
+
+                    TextArea {
+                        id: codeEditor
+                        anchors.top: parent.top
+                        anchors.bottom: parent.bottom
+                        anchors.left: parent.left
+                        anchors.right: settings.left
+                    }
+
+                    Column {
+                        id: settings
+                        spacing: 5
+                        width: 300
+                        height: parent.height
+                        anchors.right: parent.right
+                        anchors.top: parent.top
+                        anchors.bottom: parent.bottom
+
+                        Label {
+                            text: "Arbitrary data"
+                        }
+                        TextArea {
+                            id: rawDataField
+                            anchors.left: parent.left
+                            anchors.right: parent.right
+                            height: 150
+                        }
+
+                        Label {
+                            text: "Amount"
+                        }
+                        TextField {
+                            id: txValue
+                            width: 200
+                            placeholderText: "Amount"
+                            validator: RegExpValidator { regExp: /\d*/ }
+                        }
+                        Label {
+                            text: "Amount of gas"
+                        }
+                        TextField {
+                            id: txGas
+                            width: 200
+                            validator: RegExpValidator { regExp: /\d*/ }
+                            text: "10000"
+                            placeholderText: "Gas"
+                        }
+                        Label {
+                            text: "Gas price"
+                        }
+                        TextField {
+                            id: txGasPrice
+                            width: 200
+                            placeholderText: "Gas price"
+                            text: "1000000000000"
+                            validator: RegExpValidator { regExp: /\d*/ }
+                        }
+                    }
+                }
+
+                SplitView {
+                    orientation: Qt.Vertical
+                    id: inspectorPane
+                    height: 500
+
+                    SplitView {
+                        orientation: Qt.Horizontal
+                        height: 250
+
+                        TableView {
+                            id: stackTableView
+                            property var stackModel: ListModel {
+                                id: stackModel
+                            }
+                            height: parent.height
+                            width: 300
+                            TableViewColumn{ role: "value" ; title: "Stack" ; width: 200 }
+                            model: stackModel
+                        }
+
+                        TableView {
+                            id: memoryTableView
+                            property var memModel: ListModel {
+                                id: memModel
+                            }
+                            height: parent.height
+                            width: parent.width - stackTableView.width
+                            TableViewColumn{ id:mnumColmn ; role: "num" ; title: "#" ; width: 50}
+                            TableViewColumn{ role: "value" ; title: "Memory" ; width: 750}
+                            model: memModel
+                        }
+                    }
+
+                    SplitView {
+                        height: 300
+                        TableView {
+                            id: storageTableView
+                            property var memModel: ListModel {
+                                id: storageModel
+                            }
+                            height: parent.height
+                            width: parent.width - stackTableView.width
+                            TableViewColumn{ id: key ; role: "key" ; title: "#" ; width: storageTableView.width / 2}
+                            TableViewColumn{ role: "value" ; title: "value" ; width:  storageTableView.width / 2}
+                            model: storageModel
+                        }
+                    }
+                }
+            }
+        }
+    }
+    toolBar: ToolBar {
+        RowLayout {
+            spacing: 5
+
+            Button {
+                property var enabled: true
+                id: debugStart
+                onClicked: {
+                    dbg.debug(txValue.text, txGas.text, txGasPrice.text, codeEditor.text, rawDataField.text)
+                }
+                text: "Debug"
+            }
+
+            Button {
+                property var enabled: true
+                id: debugNextButton
+                onClicked: {
+                    dbg.next()
+                }
+                text: "Next"
+            }
+        }
+    }
+
+    function setAsm(asm) {
+        asmModel.append({asm: asm})
+    }
+
+    function clearAsm() {
+        asmModel.clear()
+    }
+
+    function setInstruction(num) {
+        asmTableView.selection.clear()
+        asmTableView.selection.select(num-1)
+    }
+
+    function setMem(mem) {
+        memModel.append({num: mem.num, value: mem.value})
+    }
+    function clearMem(){
+        memModel.clear()
+    }
+
+    function setStack(stack) {
+        stackModel.append({value: stack})
+    }
+    function addDebugMessage(message){
+        debuggerLog.append({value: message})
+    }
+
+    function clearStack() {
+        stackModel.clear()
+    }
+
+    function clearStorage() {
+        storageModel.clear()
+    }
+
+    function setStorage(storage) {
+        storageModel.append({key: storage.key, value: storage.value})
+    }
+}
diff --git a/ethereal/assets/heart.png b/ethereal/assets/heart.png
new file mode 100644
index 000000000..3c874ab7f
Binary files /dev/null and b/ethereal/assets/heart.png differ
diff --git a/ethereal/assets/qml/wallet.qml b/ethereal/assets/qml/wallet.qml
index f23f182f3..5e0904a20 100644
--- a/ethereal/assets/qml/wallet.qml
+++ b/ethereal/assets/qml/wallet.qml
@@ -6,6 +6,7 @@ import QtQuick.Window 2.1;
 import QtQuick.Controls.Styles 1.1
 import Ethereum 1.0
 
+
 ApplicationWindow {
 	id: root
 
@@ -122,7 +123,7 @@ ApplicationWindow {
 				}
 
 				Image {
-					source: ui.assetPath("net.png")
+					source: ui.assetPath("heart.png")
 					anchors.horizontalCenter: parent.horizontalCenter
 					MouseArea {
 						anchors.fill: parent
@@ -202,16 +203,14 @@ ApplicationWindow {
 					anchors.bottom: logView.top
 					TableViewColumn{ role: "number" ; title: "#" ; width: 100 }
 					TableViewColumn{ role: "hash" ; title: "Hash" ; width: 560 }
+					TableViewColumn{ role: "txAmount" ; title: "Tx amount" ; width: 100 }
 
 					model: blockModel
 
-					/*
-					 onDoubleClicked: {
-						 popup.visible = true
-						 popup.block = eth.getBlock(blockModel.get(row).hash)
-						 popup.hashLabel.text = popup.block.hash
-					 }
-					 */
+					onDoubleClicked: {
+						popup.visible = true
+						popup.setDetails(blockModel.get(row))
+					}
 				}
 
 				property var logModel: ListModel {
@@ -285,29 +284,27 @@ ApplicationWindow {
 		title: "Open QML Application"
 		onAccepted: {
 			//ui.open(openAppDialog.fileUrl.toString())
-      //ui.openHtml(Qt.resolvedUrl(ui.assetPath("test.html")))
-      ui.openHtml(openAppDialog.fileUrl.toString())
-
+			//ui.openHtml(Qt.resolvedUrl(ui.assetPath("test.html")))
+			ui.openHtml(openAppDialog.fileUrl.toString())
 		}
 	}
 
 	statusBar: StatusBar {
 		RowLayout {
 			anchors.fill: parent
+
 			Button {
 				property var enabled: true
-				id: connectButton
+				id: debuggerWindow
 				onClicked: {
-					if(this.enabled) {
-						ui.connect(this)
-					}
+					ui.startDebugger()
 				}
-				text: "Connect"
+				text: "Debugger"
 			}
 
 			Button {
 				id: importAppButton
-				anchors.left: connectButton.right
+				anchors.left: debuggerWindow.right
 				anchors.leftMargin: 5
 				onClicked: openAppDialog.open()
 				text: "Import App"
@@ -339,10 +336,107 @@ ApplicationWindow {
 		id: popup
 		visible: false
 		property var block
-		Label {
-			id: hashLabel
-			anchors.horizontalCenter: parent.horizontalCenter
-			anchors.verticalCenter: parent.verticalCenter
+		width: 800
+		height: 280
+		x: root.x
+		y: root.y + root.height
+		Component{
+			id: blockDetailsDelegate
+			Rectangle {
+				color: "#252525"
+				width: popup.width
+				height: 200
+				Column {
+					anchors.leftMargin: 10
+					anchors.topMargin: 5
+					anchors.top: parent.top
+					anchors.left: parent.left
+					Text { text: '<h3>Block details</h3>'; color: "#F2F2F2"}
+					Text { text: '<b>Block number:</b> ' + number; color: "#F2F2F2"}
+					Text { text: '<b>Hash:</b> ' + hash; color: "#F2F2F2"}
+					Text { text: '<b>Block found at:</b> ' + prettyTime; color: "#F2F2F2"}
+				}
+			}
+		}
+		ListView {
+			model: singleBlock
+			delegate: blockDetailsDelegate
+			anchors.top: parent.top
+			height: 70
+			anchors.leftMargin: 20
+			id: listViewThing
+			Layout.maximumHeight: 40
+		}
+		TableView {
+			id: txView
+			anchors.top: listViewThing.bottom
+			anchors.topMargin: 50
+			width: parent.width
+
+			TableViewColumn{width: 90; role: "value" ; title: "Value" }
+			TableViewColumn{width: 200; role: "hash" ; title: "Hash" }
+			TableViewColumn{width: 200; role: "sender" ; title: "Sender" }
+			TableViewColumn{width: 200;role: "address" ; title: "Receiver" }
+			TableViewColumn{width: 60; role: "gas" ; title: "Gas" }
+			TableViewColumn{width: 60; role: "gasPrice" ; title: "Gas Price" }
+			TableViewColumn{width: 60; role: "isContract" ; title: "Contract" }
+
+			model: transactionModel
+			onClicked: {
+				var tx = transactionModel.get(row)
+				if(tx.data) {
+					popup.showContractData(tx.data)
+				}else{
+					popup.height = 230
+				}
+			}
+		}
+		function showContractData(data) {
+			contractData.text = data
+			popup.height = 400
+		}
+		Rectangle {
+			width: popup.width
+			height: 300
+			anchors.left: listViewThing.left
+			anchors.top: txView.bottom
+			Label {
+				text: "<h4>Contract data</h4>"
+				anchors.top: parent.top
+				anchors.left: parent.left
+				id: contractLabel
+				anchors.leftMargin: 10
+			}
+			TextArea {
+				id: contractData
+				text: "Contract"
+				anchors.top: contractLabel.bottom
+				anchors.left: parent.left
+				wrapMode: Text.Wrap
+				width: parent.width - 30
+				height: 80
+				anchors.leftMargin: 10
+			}
+		}
+		property var transactionModel: ListModel {
+			id: transactionModel
+		}
+		property var singleBlock: ListModel {
+			id: singleBlock
+		}
+		function setDetails(block){
+			singleBlock.set(0,block)
+			popup.height = 230
+			transactionModel.clear()
+			if(block.txs != undefined){
+				for(var i = 0; i < block.txs.count; ++i) {
+					transactionModel.insert(0, block.txs.get(i))
+				}
+				if(block.txs.get(0).data){
+					popup.showContractData(block.txs.get(0).data)
+				}
+			}
+			txView.forceActiveFocus()
 		}
 	}
 
@@ -409,7 +503,7 @@ ApplicationWindow {
 
 	}
 
-	Window {
+	ApplicationWindow {
 		id: debugWindow
 		visible: false
 		title: "Debugger"
@@ -447,36 +541,50 @@ ApplicationWindow {
 					orientation: Qt.Vertical
 					anchors.fill: parent
 
-          TableView {
-            property var memModel: ListModel {
-              id: memModel
-            }
-            height: parent.height/2
-            width: parent.width
-            TableViewColumn{ id:mnumColmn ; role: "num" ; title: "#" ; width: 50}
-            TableViewColumn{ role: "value" ; title: "Memory" ; width: 750}
-            model: memModel
-          }
+					TableView {
+						property var memModel: ListModel {
+							id: memModel
+						}
+						height: parent.height/2
+						width: parent.width
+						TableViewColumn{ id:mnumColmn ; role: "num" ; title: "#" ; width: 50}
+						TableViewColumn{ role: "value" ; title: "Memory" ; width: 750}
+						model: memModel
+					}
 
-          SplitView {
-            orientation: Qt.Horizontal
-            TableView {
-              property var debuggerLog: ListModel {
-                id: debuggerLog
-              }
-              TableViewColumn{ role: "value"; title: "Debug messages" }
-              model: debuggerLog
-            }
-            TableView {
-              property var stackModel: ListModel {
-                id: stackModel
-              }
-              height: parent.height/2
-              width: parent.width
-              TableViewColumn{ role: "value" ; title: "Stack" ; width: parent.width }
-              model: stackModel
-            }
-          }
+					SplitView {
+						orientation: Qt.Horizontal
+						id: debugSplitView
+						TableView {
+							property var debuggerLog: ListModel {
+								id: debuggerLog
+							}
+							TableViewColumn{ role: "value"; title: "Debug messages" }
+							model: debuggerLog
+						}
+						TableView {
+							property var stackModel: ListModel {
+								id: stackModel
+							}
+							height: parent.height/2
+							width: parent.width
+							TableViewColumn{ role: "value" ; title: "Stack" ; width: debugSplitView.width }
+							model: stackModel
+						}
+					}
+				}
+			}
+		}
+		statusBar: StatusBar {
+			RowLayout {
+				anchors.fill: parent
+				Button {
+					property var enabled: true
+					id: debugNextButton
+					onClicked: {
+						ui.next()
+					}
+					text: "Next"
 				}
 			}
 		}
@@ -533,8 +641,22 @@ ApplicationWindow {
 		txModel.insert(0, {inout: inout, hash: tx.hash, address: tx.address, value: tx.value, contract: isContract})
 	}
 
-	function addBlock(block) {
-		blockModel.insert(0, {number: block.number, hash: block.hash})
+	function addBlock(block, initial) {
+		var txs = JSON.parse(block.transactions);
+		var amount = 0
+		if(initial == undefined){
+			initial = false
+		}
+
+		if(txs != null){
+			amount = txs.length
+		}
+
+		if(initial){
+			blockModel.append({number: block.number, hash: block.hash, txs: txs, txAmount: amount, time: block.time, prettyTime: convertToPretty(block.time)})
+		}else{
+			blockModel.insert(0, {number: block.number, hash: block.hash, txs: txs, txAmount: amount, time: block.time, prettyTime: convertToPretty(block.time)})
+		}
 	}
 
 	function addLog(str) {
@@ -546,4 +668,16 @@ ApplicationWindow {
 	function setPeers(text) {
 		peerLabel.text = text
 	}
+	function convertToPretty(unixTs){
+		var a = new Date(unixTs*1000);
+		var months = ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'];
+		var year = a.getFullYear();
+		var month = months[a.getMonth()];
+		var date = a.getDate();
+		var hour = a.getHours();
+		var min = a.getMinutes();
+		var sec = a.getSeconds();
+		var time = date+' '+month+' '+year+' '+hour+':'+min+':'+sec ;
+		return time;
+	}
 }
diff --git a/ethereal/assets/samplecoin/samplecoin.html b/ethereal/assets/samplecoin/samplecoin.html
index 3892141cd..e780aefb4 100644
--- a/ethereal/assets/samplecoin/samplecoin.html
+++ b/ethereal/assets/samplecoin/samplecoin.html
@@ -9,7 +9,7 @@
 
 <script type="text/javascript">
 
-var jefcoinAddr = "fc0a9436890478bb9b1c6ed7455c2535366f4a99"
+var jefcoinAddr = "518546ffa883dcc838a64bc2dabada0fd64af459"
 var mAddr = ""
 
 function createTransaction() {
diff --git a/ethereal/ui/debugger.go b/ethereal/ui/debugger.go
new file mode 100644
index 000000000..8b27c2fe5
--- /dev/null
+++ b/ethereal/ui/debugger.go
@@ -0,0 +1,177 @@
+package ethui
+
+import (
+	"fmt"
+	"github.com/ethereum/eth-go/ethchain"
+	"github.com/ethereum/eth-go/ethutil"
+	"github.com/go-qml/qml"
+	"math/big"
+	"strings"
+)
+
+type DebuggerWindow struct {
+	win    *qml.Window
+	engine *qml.Engine
+	lib    *UiLib
+	Db     *Debugger
+}
+
+func NewDebuggerWindow(lib *UiLib) *DebuggerWindow {
+	engine := qml.NewEngine()
+	component, err := engine.LoadFile(lib.AssetPath("debugger/debugger.qml"))
+	if err != nil {
+		fmt.Println(err)
+
+		return nil
+	}
+
+	win := component.CreateWindow(nil)
+	db := &Debugger{win, make(chan bool), make(chan bool), true}
+
+	return &DebuggerWindow{engine: engine, win: win, lib: lib, Db: db}
+}
+
+func (self *DebuggerWindow) Show() {
+	context := self.engine.Context()
+	context.SetVar("dbg", self)
+
+	go func() {
+		self.win.Show()
+		self.win.Wait()
+	}()
+}
+
+func formatData(data string) []byte {
+	if len(data) == 0 {
+		return nil
+	}
+	// Simple stupid
+	d := new(big.Int)
+	if data[0:1] == "\"" && data[len(data)-1:] == "\"" {
+		d.SetBytes([]byte(data[1 : len(data)-1]))
+	} else if data[:2] == "0x" {
+		d.SetBytes(ethutil.FromHex(data[2:]))
+	} else {
+		d.SetString(data, 0)
+	}
+
+	return ethutil.BigToBytes(d, 256)
+}
+
+func (self *DebuggerWindow) Debug(valueStr, gasStr, gasPriceStr, scriptStr, dataStr string) {
+	if !self.Db.done {
+		self.Db.Q <- true
+	}
+
+	dataSlice := strings.Split(dataStr, "\n")
+	var data []byte
+	for _, dataItem := range dataSlice {
+		d := formatData(dataItem)
+		data = append(data, d...)
+	}
+
+	state := self.lib.eth.BlockChain().CurrentBlock.State()
+
+	defer func() {
+		if r := recover(); r != nil {
+			fmt.Println(r)
+		}
+	}()
+
+	script, err := ethutil.Compile(scriptStr)
+	if err != nil {
+		ethutil.Config.Log.Debugln(err)
+
+		return
+	}
+
+	dis := ethchain.Disassemble(script)
+	self.win.Root().Call("clearAsm")
+
+	for _, str := range dis {
+		self.win.Root().Call("setAsm", str)
+	}
+	// Contract addr as test address
+	keyPair := ethutil.GetKeyRing().Get(0)
+	callerTx := ethchain.NewContractCreationTx(ethutil.Big(valueStr), ethutil.Big(gasStr), ethutil.Big(gasPriceStr), script)
+	callerTx.Sign(keyPair.PrivateKey)
+
+	account := self.lib.eth.StateManager().TransState().GetAccount(keyPair.Address())
+	contract := ethchain.MakeContract(callerTx, state)
+	callerClosure := ethchain.NewClosure(account, contract, script, state, ethutil.Big(gasStr), ethutil.Big(gasPriceStr))
+
+	block := self.lib.eth.BlockChain().CurrentBlock
+	vm := ethchain.NewVm(state, self.lib.eth.StateManager(), ethchain.RuntimeVars{
+		Origin:      account.Address(),
+		BlockNumber: block.BlockInfo().Number,
+		PrevHash:    block.PrevHash,
+		Coinbase:    block.Coinbase,
+		Time:        block.Time,
+		Diff:        block.Difficulty,
+	})
+
+	self.Db.done = false
+	go func() {
+		callerClosure.Call(vm, data, self.Db.halting)
+
+		state.Reset()
+
+		self.Db.done = true
+	}()
+}
+
+func (self *DebuggerWindow) Next() {
+	self.Db.Next()
+}
+
+type Debugger struct {
+	win  *qml.Window
+	N    chan bool
+	Q    chan bool
+	done bool
+}
+
+type storeVal struct {
+	Key, Value string
+}
+
+func (d *Debugger) halting(pc int, op ethchain.OpCode, mem *ethchain.Memory, stack *ethchain.Stack, stateObject *ethchain.StateObject) bool {
+	d.win.Root().Call("setInstruction", pc)
+	d.win.Root().Call("clearMem")
+	d.win.Root().Call("clearStack")
+	d.win.Root().Call("clearStorage")
+
+	addr := 0
+	for i := 0; i+32 <= mem.Len(); i += 32 {
+		d.win.Root().Call("setMem", memAddr{fmt.Sprintf("%03d", addr), fmt.Sprintf("% x", mem.Data()[i:i+32])})
+		addr++
+	}
+
+	for _, val := range stack.Data() {
+		d.win.Root().Call("setStack", val.String())
+	}
+
+	stateObject.State().EachStorage(func(key string, node *ethutil.Value) {
+		d.win.Root().Call("setStorage", storeVal{fmt.Sprintf("% x", key), fmt.Sprintf("% x", node.Str())})
+	})
+
+out:
+	for {
+		select {
+		case <-d.N:
+			break out
+		case <-d.Q:
+			d.done = true
+
+			return false
+		}
+	}
+
+	return true
+}
+
+func (d *Debugger) Next() {
+	if !d.done {
+		d.N <- true
+	}
+}
diff --git a/ethereal/ui/gui.go b/ethereal/ui/gui.go
index 8d6796ddb..63ab028ab 100644
--- a/ethereal/ui/gui.go
+++ b/ethereal/ui/gui.go
@@ -54,7 +54,7 @@ func New(ethereum *eth.Ethereum) *Gui {
 }
 
 func (gui *Gui) Start(assetPath string) {
-	const version = "0.5.0 RC9"
+	const version = "0.5.0 RC10"
 
 	defer gui.txDb.Close()
 
@@ -130,20 +130,19 @@ func (gui *Gui) createWindow(comp qml.Object) *qml.Window {
 	gui.win = win
 	gui.uiLib.win = win
 
-	db := &Debugger{gui.win, make(chan bool)}
+	db := &Debugger{gui.win, make(chan bool), make(chan bool), true}
 	gui.lib.Db = db
 	gui.uiLib.Db = db
 
 	return gui.win
 }
-
 func (gui *Gui) setInitialBlockChain() {
-	// Load previous 10 blocks
-	chain := gui.eth.BlockChain().GetChain(gui.eth.BlockChain().CurrentBlock.Hash(), 10)
-	for _, block := range chain {
-		gui.processBlock(block)
+	sBlk := gui.eth.BlockChain().LastBlockHash
+	blk := gui.eth.BlockChain().GetBlock(sBlk)
+	for ; blk != nil; blk = gui.eth.BlockChain().GetBlock(sBlk) {
+		sBlk = blk.PrevHash
+		gui.processBlock(blk, true)
 	}
-
 }
 
 func (gui *Gui) readPreviousTransactions() {
@@ -164,8 +163,8 @@ func (gui *Gui) readPreviousTransactions() {
 	it.Release()
 }
 
-func (gui *Gui) processBlock(block *ethchain.Block) {
-	gui.win.Root().Call("addBlock", ethpub.NewPBlock(block))
+func (gui *Gui) processBlock(block *ethchain.Block, initial bool) {
+	gui.win.Root().Call("addBlock", ethpub.NewPBlock(block), initial)
 }
 
 func (gui *Gui) setWalletValue(amount, unconfirmedFunds *big.Int) {
@@ -204,6 +203,7 @@ func (gui *Gui) update() {
 		select {
 		case b := <-blockChan:
 			block := b.Resource.(*ethchain.Block)
+			gui.processBlock(block, false)
 			if bytes.Compare(block.Coinbase, gui.addr) == 0 {
 				gui.setWalletValue(gui.eth.StateManager().CurrentState().GetAccount(gui.addr).Amount, nil)
 			}
diff --git a/ethereal/ui/ui_lib.go b/ethereal/ui/ui_lib.go
index 1c88b0181..998392525 100644
--- a/ethereal/ui/ui_lib.go
+++ b/ethereal/ui/ui_lib.go
@@ -2,13 +2,10 @@ package ethui
 
 import (
 	"bitbucket.org/kardianos/osext"
-	"fmt"
 	"github.com/ethereum/eth-go"
 	"github.com/ethereum/eth-go/ethchain"
 	"github.com/ethereum/eth-go/ethutil"
-	"github.com/ethereum/go-ethereum/utils"
 	"github.com/go-qml/qml"
-	"github.com/obscuren/mutan"
 	"os"
 	"path"
 	"path/filepath"
@@ -92,6 +89,12 @@ func (ui *UiLib) AssetPath(p string) string {
 	return path.Join(ui.assetPath, p)
 }
 
+func (self *UiLib) StartDebugger() {
+	dbWindow := NewDebuggerWindow(self)
+
+	dbWindow.Show()
+}
+
 func DefaultAssetPath() string {
 	var base string
 	// If the current working directory is the go-ethereum dir
@@ -121,27 +124,28 @@ func DefaultAssetPath() string {
 func (ui *UiLib) DebugTx(recipient, valueStr, gasStr, gasPriceStr, data string) {
 	state := ui.eth.BlockChain().CurrentBlock.State()
 
-	mainInput, _ := mutan.PreParse(data)
-	callerScript, err := utils.Compile(mainInput)
+	script, err := ethutil.Compile(data)
 	if err != nil {
 		ethutil.Config.Log.Debugln(err)
 
 		return
 	}
 
-	dis := ethchain.Disassemble(callerScript)
+	dis := ethchain.Disassemble(script)
 	ui.win.Root().Call("clearAsm")
 
 	for _, str := range dis {
 		ui.win.Root().Call("setAsm", str)
 	}
-	callerTx := ethchain.NewContractCreationTx(ethutil.Big(valueStr), ethutil.Big(gasStr), ethutil.Big(gasPriceStr), nil)
-
 	// Contract addr as test address
 	keyPair := ethutil.GetKeyRing().Get(0)
+	callerTx :=
+		ethchain.NewContractCreationTx(ethutil.Big(valueStr), ethutil.Big(gasStr), ethutil.Big(gasPriceStr), script)
+	callerTx.Sign(keyPair.PrivateKey)
+
 	account := ui.eth.StateManager().TransState().GetStateObject(keyPair.Address())
-	c := ethchain.MakeContract(callerTx, state)
-	callerClosure := ethchain.NewClosure(account, c, c.Script(), state, ethutil.Big(gasStr), ethutil.Big(gasPriceStr))
+	contract := ethchain.MakeContract(callerTx, state)
+	callerClosure := ethchain.NewClosure(account, contract, contract.Init(), state, ethutil.Big(gasStr), ethutil.Big(gasPriceStr))
 
 	block := ui.eth.BlockChain().CurrentBlock
 	vm := ethchain.NewVm(state, ui.eth.StateManager(), ethchain.RuntimeVars{
@@ -151,50 +155,18 @@ func (ui *UiLib) DebugTx(recipient, valueStr, gasStr, gasPriceStr, data string)
 		Coinbase:    block.Coinbase,
 		Time:        block.Time,
 		Diff:        block.Difficulty,
-		TxData:      nil,
 	})
 
+	ui.Db.done = false
 	go func() {
-		callerClosure.Call(vm, nil, ui.Db.halting)
+		callerClosure.Call(vm, contract.Init(), ui.Db.halting)
 
 		state.Reset()
+
+		ui.Db.done = true
 	}()
 }
 
 func (ui *UiLib) Next() {
 	ui.Db.Next()
 }
-
-type Debugger struct {
-	win *qml.Window
-	N   chan bool
-}
-
-func (d *Debugger) halting(pc int, op ethchain.OpCode, mem *ethchain.Memory, stack *ethchain.Stack) {
-	d.win.Root().Call("setInstruction", pc)
-	d.win.Root().Call("clearMem")
-	d.win.Root().Call("clearStack")
-
-	addr := 0
-	for i := 0; i+32 <= mem.Len(); i += 32 {
-		d.win.Root().Call("setMem", memAddr{fmt.Sprintf("%03d", addr), fmt.Sprintf("% x", mem.Data()[i:i+32])})
-		addr++
-	}
-
-	for _, val := range stack.Data() {
-		d.win.Root().Call("setStack", val.String())
-	}
-
-out:
-	for {
-		select {
-		case <-d.N:
-			break out
-		default:
-		}
-	}
-}
-
-func (d *Debugger) Next() {
-	d.N <- true
-}
diff --git a/utils/cmd.go b/utils/cmd.go
index 98005d7de..f8b7b5fe2 100644
--- a/utils/cmd.go
+++ b/utils/cmd.go
@@ -40,6 +40,13 @@ func DoMining(ethereum *eth.Ethereum) {
 		// Give it some time to connect with peers
 		time.Sleep(3 * time.Second)
 
+		for ethereum.IsUpToDate() == false {
+			time.Sleep(5 * time.Second)
+		}
+
+		ethutil.Config.Log.Infoln("Miner started")
+
+		miner := ethminer.NewDefaultMiner(addr, ethereum)
 		miner.Start()
 	}()
 }