MediaPortal stürzt ab (1 Viewer)

[Sebell]

Mein Media Portal stürzt manchmal ab.
In der ErrLog steht folgendes

2010-11-01 16:52:37.484951 [ERROR][(16)]: MediaPortal: Unhandled exception occured
2010-11-01 16:52:37.487951 [ERROR][(16)]: Exception   :System.InvalidCastException: Das Objekt des Typs "TvPlugin.TvMiniGuide" kann nicht in Typ "MediaPortal.Dialogs.GUIDialogWindow" umgewandelt werden.
   bei MediaPortal.Dialogs.GUIDialogWindow.PageLoad(Int32 ParentID)
   bei MediaPortal.Dialogs.GUIDialogWindow.DoModal(Int32 ParentID)
   bei MediaPortal.Dialogs.GUIDialogNotify.DoModal(Int32 dwParentId)
   bei ProcessPlugins.ShowTimesGrabber.ShowTimes.NotifyPopUp(String notifyText, Object[] args)
   bei ProcessPlugins.ShowTimesGrabber.ShowTimes.ProcessDone(Object sender, EventArgs e)
   bei System.Diagnostics.Process.OnExited()
   bei System.Diagnostics.Process.RaiseOnExited()
   bei System.Diagnostics.Process.CompletionCallback(Object context, Boolean wasSignaled)
   bei System.Threading._ThreadPoolWaitOrTimerCallback.WaitOrTimerCallback_Context(Object state, Boolean timedOut)
   bei System.Threading._ThreadPoolWaitOrTimerCallback.WaitOrTimerCallback_Context_f(Object state)
   bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   bei System.Threading._ThreadPoolWaitOrTimerCallback.PerformWaitOrTimerCallback(Object state, Boolean timedOut)

MediaPortal Version: MediaPortal 1.1.0 Final
MediaPortal Skin: StreamedMP
Windows Version: Windows 7
CPU Type: AMD Phenom II X4 905e 2,5GHZ
HDD: OCZ Agility 60GB
Memory: 4GB GSkill
Motherboard: Asus MA78GM-US2H
Video Card: ATI RADEON HD 5450
Video Card Driver:
Sound Card:
Sound Card AC3:
Sound Card Driver:
1. TV Card: Floppy DTV S2
1. TV Card Type: DVB-S
1. TV Card Driver:
2. TV Card: AverMedia
2. TV Card Type: DVB-T
2. TV Card Driver:
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec: ffdshow
MPEG2 Audio Codec: ffdshow
h.264 Video Codec: Cyberlink H.264/AVC Decoder
Satelite/CableTV Provider: Astra 19.2°E
HTPC Case: Origen AE S14V
Cooling:
Power Supply:
Remote: Origen AE FB MCE
TV: Pionner Kuro PDP-LX5090H
TV - HTPC Connection: HDMI to HDMI