diff --git a/slsDetectorSoftware/slsReceiver/slsReceiver.cpp b/slsDetectorSoftware/slsReceiver/slsReceiver.cpp
index 88d1b7fa5..37b67da66 100644
--- a/slsDetectorSoftware/slsReceiver/slsReceiver.cpp
+++ b/slsDetectorSoftware/slsReceiver/slsReceiver.cpp
@@ -34,7 +34,7 @@ int main(int argc, char *argv[])
 				cout << "no config file name given. Exiting." << endl;
 				return -1;
 			}
-			fname.assign(argv[iarg]);
+			fname.assign(argv[iarg+1]);
 		}
 		if(!strcasecmp(argv[iarg],"-shortfname"))
 			shortfname = true;
diff --git a/slsDetectorSoftware/slsReceiver/slsReceiverFunctionList.cpp b/slsDetectorSoftware/slsReceiver/slsReceiverFunctionList.cpp
index eacd8de1e..66bc14580 100644
--- a/slsDetectorSoftware/slsReceiver/slsReceiverFunctionList.cpp
+++ b/slsDetectorSoftware/slsReceiver/slsReceiverFunctionList.cpp
@@ -251,6 +251,7 @@ int slsReceiverFunctionList::startListening(){
 				if(fifo->isFull())
 					cout<<"**********************FIFO FULLLLLLLL************************"<<endl;
 				else{
+					cout<<"read index:"<<(int)(*(int*)buffer)<<endl;
 					dataReadFrame = new dataStruct;
 					dataReadFrame->buffer=buffer;
 					dataReadFrame->rc=rc;
@@ -320,8 +321,8 @@ int slsReceiverFunctionList::startWriting(){
 
 	while(listening_thread_running){
 
-		//when it reaches 20000,start writing new file
-		if (framesInFile == 20000) {
+		//when it reaches MAX_FRAMES_PER_FILE,start writing new file
+		if (framesInFile == MAX_FRAMES_PER_FILE) {
 			fclose(sfilefd);
 
 			//create file name
@@ -354,6 +355,7 @@ int slsReceiverFunctionList::startWriting(){
 				framesCaught++;
 				totalFramesCaught++;
 				memcpy(latestData,dataWriteFrame->buffer,BUFFER_SIZE);
+				//cout<<"list write \t index:"<<(int)(*(int*)latestData)<<endl;
 				fwrite(dataWriteFrame->buffer, 1, dataWriteFrame->rc, sfilefd);
 				framesInFile++;
 				delete dataWriteFrame->buffer;
diff --git a/slsDetectorSoftware/slsReceiver/slsReceiverFunctionList.h b/slsDetectorSoftware/slsReceiver/slsReceiverFunctionList.h
index 98d461c7c..1f006f69b 100644
--- a/slsDetectorSoftware/slsReceiver/slsReceiverFunctionList.h
+++ b/slsDetectorSoftware/slsReceiver/slsReceiverFunctionList.h
@@ -156,6 +156,9 @@ public:
 
 
 private:
+
+	static const int MAX_FRAMES_PER_FILE = 20000;
+
 	/** Complete File name */
 	char savefilename[MAX_STR_LENGTH];
 
diff --git a/slsDetectorSoftware/slsReceiver/slsReceiver_funcs.cpp b/slsDetectorSoftware/slsReceiver/slsReceiver_funcs.cpp
index 79974482f..2e985b0ad 100644
--- a/slsDetectorSoftware/slsReceiver/slsReceiver_funcs.cpp
+++ b/slsDetectorSoftware/slsReceiver/slsReceiver_funcs.cpp
@@ -607,7 +607,7 @@ int	slsReceiverFuncs::read_frame(){
 			index2= (int)(*((int*)((char*)(raw+onebuffersize))));
 			memcpy(origVal,raw,BUFFER_SIZE);
 			raw=NULL;
-			//cout<<"index:"<<index<<"\tindex2:"<<index2<<endl;
+			//cout<<"funcs\tindex:"<<index<<"\tindex2:"<<index2<<endl;
 
 
 			//1 odd, 1 even