diff --git a/lib/jobManager.js b/lib/jobManager.js
index 26ad9d7..6b07b75 100644
--- a/lib/jobManager.js
+++ b/lib/jobManager.js
@@ -17,10 +17,10 @@ var blockTemplate = require('./blockTemplate.js');
 var ExtraNonceCounter = function(){
     var instanceId = 31;
     var counter = instanceId << 27;
-    var size = util.packUInt32BE(counter).length;
+    var size = util.packUInt32BE(Math.abs(counter)).length;
 
     this.next = function(){
-        var extraNonce = util.packUInt32BE(counter++);
+        var extraNonce = util.packUInt32BE(Math.abs(counter++));
         return extraNonce.toString('hex');
     };
     this.size = function(){
@@ -152,7 +152,7 @@ var JobManager = module.exports = function JobManager(options){
     };
 
     this.processShare = function(jobId, difficulty, extraNonce1, extraNonce2, nTime, nonce, ipAddress, workerName){
-
+        console.log(difficulty);
         var shareError = function(error){
             _this.emit('share', {
                 job: jobId,
@@ -181,7 +181,7 @@ var JobManager = module.exports = function JobManager(options){
         }
 
         var nTimeInt = parseInt(nTime, 16);
-        if (nTimeInt < job.rpcData.curtime || nTime > submitTime + 7200) {
+        if (nTimeInt < job.rpcData.curtime || nTimeInt > submitTime + 7200) {
             return shareError([20, 'ntime out of range']);
         }
 
diff --git a/scripts/blockNotify.js b/scripts/blockNotify.js
old mode 100644
new mode 100755