vista 64 bit stuttering problems mediaportal

[nicotol]

Having stuttering problems

Can anyone help me, when i play dvd / h264 or film it often stutters, i tried several mpgeg decoders.
I have 8 gbyte ram and 2x geforce 8800 gtx in sli mode.
Also there is sometimes a green square in te upper right corner, for about half a second.


Thx

NIco




TV-Server Version:
MediaPortal Version: 0.2.3.0
MediaPortal Skin: monochrome
Windows Version: vista 64 bit
CPU Type: intel quad core 6600
HDD: 250 gbyte sata
Memory: 8 gbyte
Motherboard: asus striker extreme
Motherboard Chipset:
Motherboard Bios: latest
Video Card: 2x nvidia 8800 gtx sli
Video Card Driver: forceware 169.25
Sound Card: audiomax
Sound Card AC3:
Sound Card Driver:
1. TV Card: floppydtv-c
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: purevideo / cyberlink / several
MPEG2 Audio Codec:
Satelite/CableTV Provider:
HTPC Case:
Cooling:
Power Supply: 750 watt
Remote:
TV:
TV - HTPC Connection: