Video issues on 1.1.0 Beta 1 (1 Viewer)

[jiih]

MediaPortal Version: 1.1.0 Beta 1
MediaPortal Skin: Monochrome
Windows Version: Windows 7 32bit
CPU Type: Intel Core 2 Due E7400
HDD: 250 GB Seagate
Memory: 4096MB RAM
Motherboard: Gigabyte EP45-DS3 1.0
Video Card: Nvidia Geforce 6600
Video Card Driver: Nvidia 190.62
Sound Card: Realtek HD Audio
Sound Card AC3: optical out
Sound Card Driver: 6.0.1.5874
1. TV Card:
1. TV Card Type:
1. TV Card Driver:
2. TV Card:
2. TV Card Type:
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 rev3065
MPEG2 Audio Codec: ffdshow rev3065
h.264 Video Codec: CoreAVC
Satelite/CableTV Provider:
HTPC Case: Sileverstone LC16M
Cooling:
Power Supply:
Remote:
TV:
TV - HTPC Connection:

Hi,

I'm experiencing video issues on MP 1.1.0 beta 1. Interesting enough is that this is not happening all the time, but once it starts only reboot helps. Afterwards everything is ok until the issue comes back (sometime). I attached a screenshot (from mobile) which is not the best, but you can see artifacts all over the screen.
One observation thou I find interesting - I tried to capture screenshot with ""print screen" button and artifacts were not there.

Does anyone have a clue what could be wrong?

Thanks,
jiih