taken from http://www.vdr-portal.de/board/thread.php?threadid=46753

--- util.cpp.old        2006-03-06 20:16:41.000000000 +0100
+++ util.cpp    2006-03-08 20:17:06.000000000 +0100
@@ -319,6 +319,7 @@
     if( tim->Channel() != NULL)
       Timers.Add(tim);
   }
+  Timers.SetModified();
   myTimers.Clear();
 }