diff --git a/app/scripts/background.js b/app/scripts/background.js
index 523df1261..83d0f575a 100644
--- a/app/scripts/background.js
+++ b/app/scripts/background.js
@@ -131,7 +131,10 @@ function onRpcRequest(remoteStream, payload){
   // console.log('MetaMaskPlugin - incoming payload:', payload)
   provider.sendAsync(payload, function onPayloadHandled(err, response){
     // provider engine errors are included in response objects
-    if (!payload.isMetamaskInternal) console.log('MetaMaskPlugin - RPC complete:', payload, '->', response)
+    if (!payload.isMetamaskInternal) {
+      console.log('MetaMaskPlugin - RPC complete:', payload, '->', response)
+      if (response.error) console.error('Error in RPC response:\n'+response.error.message)
+    }
     try {
       remoteStream.write(response)
     } catch (err) {
diff --git a/app/scripts/lib/idStore.js b/app/scripts/lib/idStore.js
index e9aaed82e..b462d4ad5 100644
--- a/app/scripts/lib/idStore.js
+++ b/app/scripts/lib/idStore.js
@@ -351,14 +351,20 @@ function IdManagement(opts) {
     txParams.nonce = ethUtil.addHexPrefix(txParams.nonce)
     var tx = new Transaction(txParams)
 
+    // sign tx
+    var privKeyHex = ethUtil.addHexPrefix(this.keyStore.exportPrivateKey(txParams.from, this.derivedKey, this.hdPathString))
+    var privKey = ethUtil.toBuffer(privKeyHex)
+    tx.sign(privKey)
+    
     // Add the tx hash to the persisted meta-tx object
-    var hash = '0x' + tx.hash().toString('hex')
+    var txHash = ethUtil.bufferToHex(tx.hash())
     var metaTx = configManager.getTx(txParams.metamaskId)
-    metaTx.hash = hash
+    metaTx.hash = txHash
     configManager.updateTx(metaTx)
 
-    var rawTx = '0x'+tx.serialize().toString('hex')
-    return '0x'+LightwalletSigner.signTx(this.keyStore, this.derivedKey, rawTx, txParams.from, this.hdPathString)
+    // return raw serialized tx
+    var rawTx = ethUtil.bufferToHex(tx.serialize())
+    return rawTx
   }
 
   this.getSeed = function(){
diff --git a/package.json b/package.json
index ae66621d3..c3f323d77 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "three.js": "^0.73.2",
     "through2": "^2.0.1",
     "web3": "^0.15.1",
-    "web3-provider-engine": "^7.5.0",
+    "web3-provider-engine": "^7.6.1",
     "xtend": "^4.0.1"
   },
   "devDependencies": {