diff --git a/cmd/mist/assets/qml/views/browser.qml b/cmd/mist/assets/qml/views/browser.qml
index 4d72b9741..631ef5a16 100644
--- a/cmd/mist/assets/qml/views/browser.qml
+++ b/cmd/mist/assets/qml/views/browser.qml
@@ -3,7 +3,7 @@ import QtQuick.Controls 1.0;
 import QtQuick.Controls.Styles 1.0
 import QtQuick.Layouts 1.0;
 import QtWebEngine 1.0
-//import QtWebEngine.experimental 1.0
+import QtWebEngine.experimental 1.0
 import QtQuick.Window 2.0;
 
 Rectangle {
@@ -326,6 +326,8 @@ Rectangle {
 		WebEngineView {
 			objectName: "webView"
 			id: webview
+			experimental.settings.javascriptCanAccessClipboard: true
+			experimental.settings.localContentCanAccessRemoteUrls: true
 			anchors {
 				left: parent.left
 				right: parent.right
diff --git a/cmd/mist/assets/qml/views/transaction.qml b/cmd/mist/assets/qml/views/transaction.qml
index 6637346b5..df798a9c0 100644
--- a/cmd/mist/assets/qml/views/transaction.qml
+++ b/cmd/mist/assets/qml/views/transaction.qml
@@ -103,7 +103,7 @@ Rectangle {
 
 			ComboBox {
 				id: valueDenom
-				currentIndex: 6
+				currentIndex: 5
 				model: denomModel
 			}
 		}
diff --git a/cmd/mist/assets/qml/views/wallet.qml b/cmd/mist/assets/qml/views/wallet.qml
index d1d38bb72..59dbae848 100644
--- a/cmd/mist/assets/qml/views/wallet.qml
+++ b/cmd/mist/assets/qml/views/wallet.qml
@@ -104,7 +104,7 @@ Rectangle {
 
 				ComboBox {
 					id: valueDenom
-					currentIndex: 6
+					currentIndex: 5
 					model: denomModel
 				}
 
diff --git a/core/chain_manager.go b/core/chain_manager.go
index 922d2a8d8..c28e901c6 100644
--- a/core/chain_manager.go
+++ b/core/chain_manager.go
@@ -78,11 +78,10 @@ type ChainManager struct {
 	eventMux     *event.TypeMux
 	genesisBlock *types.Block
 	// Last known total difficulty
-	mu              sync.RWMutex
-	td              *big.Int
-	lastBlockNumber uint64
-	currentBlock    *types.Block
-	lastBlockHash   []byte
+	mu            sync.RWMutex
+	td            *big.Int
+	currentBlock  *types.Block
+	lastBlockHash []byte
 
 	transState *state.StateDB
 }
@@ -94,13 +93,6 @@ func (self *ChainManager) Td() *big.Int {
 	return self.td
 }
 
-func (self *ChainManager) LastBlockNumber() uint64 {
-	self.mu.RLock()
-	defer self.mu.RUnlock()
-
-	return self.lastBlockNumber
-}
-
 func (self *ChainManager) LastBlockHash() []byte {
 	self.mu.RLock()
 	defer self.mu.RUnlock()
@@ -149,7 +141,6 @@ func (bc *ChainManager) setLastBlock() {
 		rlp.Decode(bytes.NewReader(data), &block)
 		bc.currentBlock = &block
 		bc.lastBlockHash = block.Hash()
-		bc.lastBlockNumber = block.Header().Number.Uint64()
 
 		// Set the last know difficulty (might be 0x0 as initial value, Genesis)
 		bc.td = ethutil.BigD(bc.db.LastKnownTD())
@@ -157,7 +148,7 @@ func (bc *ChainManager) setLastBlock() {
 		bc.Reset()
 	}
 
-	chainlogger.Infof("Last block (#%d) %x TD=%v\n", bc.lastBlockNumber, bc.currentBlock.Hash(), bc.td)
+	chainlogger.Infof("Last block (#%v) %x TD=%v\n", bc.currentBlock.Number(), bc.currentBlock.Hash(), bc.td)
 }
 
 // Block creation & chain handling
@@ -234,8 +225,6 @@ func (bc *ChainManager) insert(block *types.Block) {
 }
 
 func (bc *ChainManager) write(block *types.Block) {
-	bc.writeBlockInfo(block)
-
 	encodedBlock := ethutil.Encode(block.RlpDataForStorage())
 	bc.db.Put(block.Hash(), encodedBlock)
 }
@@ -354,11 +343,6 @@ func (self *ChainManager) CalcTotalDiff(block *types.Block) (*big.Int, error) {
 	return td, nil
 }
 
-// Unexported method for writing extra non-essential block info to the db
-func (bc *ChainManager) writeBlockInfo(block *types.Block) {
-	bc.lastBlockNumber++
-}
-
 func (bc *ChainManager) Stop() {
 	if bc.CurrentBlock != nil {
 		chainlogger.Infoln("Stopped")
diff --git a/crypto/secp256k1/secp256_test.go b/crypto/secp256k1/secp256_test.go
index 5e657cd72..3599fde38 100644
--- a/crypto/secp256k1/secp256_test.go
+++ b/crypto/secp256k1/secp256_test.go
@@ -3,9 +3,10 @@ package secp256k1
 import (
 	"bytes"
 	"fmt"
-	"github.com/ethereum/go-ethereum/crypto/randentropy"
 	"log"
 	"testing"
+
+	"github.com/ethereum/go-ethereum/crypto/randentropy"
 )
 
 const TESTS = 10000 // how many tests
@@ -227,3 +228,11 @@ func Test_Secp256_06b(t *testing.T) {
 		fmt.Printf("ERROR: Accepted signature for %v of %v random messages\n", fail_count, TESTS)
 	}
 }
+
+func TestInvalidKey(t *testing.T) {
+	p1 := make([]byte, 32)
+	err := VerifySeckeyValidity(p1)
+	if err == nil {
+		t.Errorf("pvk %x varify sec key should have returned error", p1)
+	}
+}