--- a/QTfrontend/tcpBase.cpp	Fri Feb 02 21:04:36 2007 +0000
+++ b/QTfrontend/tcpBase.cpp	Sat Feb 03 00:04:52 2007 +0000
@@ -149,7 +149,9 @@
 			if(m_isDemoMode) demo->append(toSendBuf);
 			toSendBuf.clear();
 		}
-		IPCSocket->write(buf);
-		if(m_isDemoMode) demo->append(buf);
+		if(!buf.isEmpty()) {
+		  IPCSocket->write(buf);
+		  if(m_isDemoMode && demo) demo->append(buf);
+		}
 	}
 }