diff --git a/slsDetectorSoftware/gotthardDetectorServer/svnInfoGotthard.h b/slsDetectorSoftware/gotthardDetectorServer/svnInfoGotthard.h
index b0d8b689c..ef85794b6 100644
--- a/slsDetectorSoftware/gotthardDetectorServer/svnInfoGotthard.h
+++ b/slsDetectorSoftware/gotthardDetectorServer/svnInfoGotthard.h
@@ -2,10 +2,10 @@
 #define SVNURL "file:///afs/psi.ch/project/sls_det_software/svn/slsDetectorSoftware/gotthardDetectorServer"
 //#define SVNREPPATH ""
 #define SVNREPUUID "951219d9-93cf-4727-9268-0efd64621fa3"
-//#define SVNREV 0x577
+//#define SVNREV 0x578
 //#define SVNKIND ""
 //#define SVNSCHED ""
 #define SVNAUTH "l_maliakal_d"
-#define SVNREV 0x577
+#define SVNREV 0x578
 #define SVNDATE 0x20130527
 //
diff --git a/slsDetectorSoftware/moenchDetectorServer/svnInfoMoench.h b/slsDetectorSoftware/moenchDetectorServer/svnInfoMoench.h
index 55bead9dc..dfb0dca56 100644
--- a/slsDetectorSoftware/moenchDetectorServer/svnInfoMoench.h
+++ b/slsDetectorSoftware/moenchDetectorServer/svnInfoMoench.h
@@ -2,10 +2,10 @@
 #define SVNURL "file:///afs/psi.ch/project/sls_det_software/svn/slsDetectorSoftware/moenchDetectorServer"
 //#define SVNREPPATH ""
 #define SVNREPUUID "951219d9-93cf-4727-9268-0efd64621fa3"
-//#define SVNREV 0x577
+//#define SVNREV 0x578
 //#define SVNKIND ""
 //#define SVNSCHED ""
 #define SVNAUTH "l_maliakal_d"
-#define SVNREV 0x577
+#define SVNREV 0x578
 #define SVNDATE 0x20130527
 //
diff --git a/slsDetectorSoftware/mythenDetectorServer/svnInfoMythen.h b/slsDetectorSoftware/mythenDetectorServer/svnInfoMythen.h
index 3bcaf7852..6ee77f5ae 100644
--- a/slsDetectorSoftware/mythenDetectorServer/svnInfoMythen.h
+++ b/slsDetectorSoftware/mythenDetectorServer/svnInfoMythen.h
@@ -2,10 +2,10 @@
 #define SVNURL "file:///afs/psi.ch/project/sls_det_software/svn/slsDetectorSoftware/mythenDetectorServer"
 //#define SVNREPPATH ""
 #define SVNREPUUID "951219d9-93cf-4727-9268-0efd64621fa3"
-//#define SVNREV 0x577
+//#define SVNREV 0x578
 //#define SVNKIND ""
 //#define SVNSCHED ""
 #define SVNAUTH "l_maliakal_d"
-#define SVNREV 0x577
+#define SVNREV 0x578
 #define SVNDATE 0x20130527
 //
diff --git a/slsDetectorSoftware/slsDetector/svnInfoLib.h b/slsDetectorSoftware/slsDetector/svnInfoLib.h
index cf0dd0673..b346316b9 100644
--- a/slsDetectorSoftware/slsDetector/svnInfoLib.h
+++ b/slsDetectorSoftware/slsDetector/svnInfoLib.h
@@ -2,10 +2,10 @@
 #define SVNURLLIB "file:///afs/psi.ch/project/sls_det_software/svn/slsDetectorSoftware"
 //#define SVNREPPATH ""
 #define SVNREPUUIDLIB "951219d9-93cf-4727-9268-0efd64621fa3"
-//#define SVNREV 0x577
+//#define SVNREV 0x578
 //#define SVNKIND ""
 //#define SVNSCHED ""
 #define SVNAUTHLIB "l_maliakal_d"
-#define SVNREVLIB 0x577
+#define SVNREVLIB 0x578
 #define SVNDATELIB 0x20130527
 //
diff --git a/slsDetectorSoftware/slsReceiver/slsReceiverFunctionList.cpp b/slsDetectorSoftware/slsReceiver/slsReceiverFunctionList.cpp
index 95b8b3341..42f3a221e 100644
--- a/slsDetectorSoftware/slsReceiver/slsReceiverFunctionList.cpp
+++ b/slsDetectorSoftware/slsReceiver/slsReceiverFunctionList.cpp
@@ -413,6 +413,7 @@ int slsReceiverFunctionList::startWriting(){
 
 	char *wbuf;
 	int sleepnumber=0;
+	int frameFactor=0;
 
 	framesInFile=0;
 	framesCaught=0;
@@ -520,27 +521,31 @@ int slsReceiverFunctionList::startWriting(){
 
 				//reads every nth frame
 				else{
+					if(frameFactor){
+						frameFactor--;
+					}else{
+						frameFactor = nFrameToGui-1;
+						//catch nth frame: gui ready to copy data
+						while(guiData==NULL){
+							if(!listening_thread_running)
+								break;
+							usleep(10000);
+							guiDataReady=0;
+						}
 
-					//catch nth frame: gui ready to copy data
-					while(guiData==NULL){
-						if(!listening_thread_running)
-							break;
-						usleep(10000);
+						//copies gui data and sets/resets guiDataReady
+						memcpy(latestData,wbuf,bufferSize);
+						strcpy(guiFileName,savefilename);
+						guiDataReady=1;
+
+						//catch nth frame: wait for gui to take data
+						while(guiData==latestData){
+							if(!listening_thread_running)
+								break;
+							usleep(100000);
+						}
 						guiDataReady=0;
 					}
-
-					//copies gui data and sets/resets guiDataReady
-					memcpy(latestData,wbuf,bufferSize);
-					strcpy(guiFileName,savefilename);
-					guiDataReady=1;
-
-					//catch nth frame: wait for gui to take data
-					while(guiData==latestData){
-						if(!listening_thread_running)
-							break;
-						usleep(100000);
-					}
-					guiDataReady=0;
 				}
 
 
diff --git a/slsDetectorSoftware/slsReceiver/slsReceiver_funcs.cpp b/slsDetectorSoftware/slsReceiver/slsReceiver_funcs.cpp
index b7d155848..71be32f65 100644
--- a/slsDetectorSoftware/slsReceiver/slsReceiver_funcs.cpp
+++ b/slsDetectorSoftware/slsReceiver/slsReceiver_funcs.cpp
@@ -1251,6 +1251,10 @@ int slsReceiverFuncs::set_read_frequency(){
 			sprintf(mess,"Receiver locked by %s\n", socket->lastClientIP);
 			ret=FAIL;
 		}
+		else if((slsReceiverList->getStatus()==RUNNING) && (index >= 0)){
+			ret = FAIL;
+			strcpy(mess,"cannot set up receiver mode when receiver is running\n");
+		}
 		else
 			retval=slsReceiverList->setNFrameToGui(index);
 	}
diff --git a/slsDetectorSoftware/slsReceiver/svnInfoReceiver.h b/slsDetectorSoftware/slsReceiver/svnInfoReceiver.h
index 3c474cb9e..5d99ef627 100644
--- a/slsDetectorSoftware/slsReceiver/svnInfoReceiver.h
+++ b/slsDetectorSoftware/slsReceiver/svnInfoReceiver.h
@@ -2,10 +2,10 @@
 #define SVNURL "file:///afs/psi.ch/project/sls_det_software/svn/slsDetectorSoftware/slsReceiver"
 //#define SVNREPPATH ""
 #define SVNREPUUID "951219d9-93cf-4727-9268-0efd64621fa3"
-//#define SVNREV 0x577
+//#define SVNREV 0x578
 //#define SVNKIND ""
 //#define SVNSCHED ""
 #define SVNAUTH "l_maliakal_d"
-#define SVNREV 0x577
+#define SVNREV 0x578
 #define SVNDATE 0x20130527
 //