Index: sources/MainTimer.cpp
===================================================================
diff -u -r3e64d98e243484505a44d99b13826097cb6b01eb -rf2db5c985e5c0ae7835a69eff43bfc537e6dd2fc
--- sources/MainTimer.cpp	(.../MainTimer.cpp)	(revision 3e64d98e243484505a44d99b13826097cb6b01eb)
+++ sources/MainTimer.cpp	(.../MainTimer.cpp)	(revision f2db5c985e5c0ae7835a69eff43bfc537e6dd2fc)
@@ -115,6 +115,8 @@
  */
 void MainTimer::timerEvent(QTimerEvent *)
 {
+    if ( ! _running ) return;
+
 #ifndef DISABLE_ACKNOW_CHECKIN_MESSAGE_LOG
     emit didTimeout();
 #endif