Trouble MP starting up. (Setup goes fine) (1 Viewer)

[Tjakke]

Area: Media Portal Program
MediaPortal Version: 0.2.0.2 (2006-07-22)
MediaPortal Skin: BlueTwo
Windows Version: Windows XP (SP2)
.NET CLR Version: 2.0.50727
DirectX Version: 4.09.00.0904 (9.0c)
Audio Codec: MPA Decoder Filter
Video Codec: MPV Decoder Filter
CPU Type: Intel Pentium 4 - 3.06GHz
Memory: 2 GB
Motherboard: MS-6701 (MICRO-STAR INTERNATIONAL CO., LTD)
TV Card Model: -
TV Card Type: -
TV Card Driver: -
Video Card Model: nvidea
Video Card Driver: -
Video Card Resolution: 1280x1024
Video Render Type: -
Audio Card Model: Realtek AC'97 Audio
Audio Card Driver: -
Synopsis::

Not able to start up MP. Setup goes fine, after startup I only see a sandbox and after a short while nothing happens..

I presume that i has something to do with .NET related problems. I have installed .NET 1.1. (and hotfix) + .NET 2.0. In earlier days I used also a development environment, but I removed this from the system (perhaps that is causing the problem?) O BTW earlier version (I think before the transition to .NET 2.0 MP worked!)\

Who can help? Thanks in advance!