[Client] (Silent) Crashes while zapping fast (1 Viewer)

[Mars Warrior]

MediaPortal Version: Always latest SVN
Windows Version: Windows XP Pro SP2 / Experimenting with Windows Server 2003
CPU Type: AMD 64 3200+
HDD: Samsung / Maxtor
Memory: 1GB
Motherboard: ASUS
Motherboard Chipset: VIA
Motherboard Bios:
Video Card: Gamebuster ATI 9200
Video Card Driver:
Sound Card: None
Sound Card AC3:
Sound Card Driver:
1. TV Card: PVR 150MCE
1. TV Card Type: PVR 150MCE
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:
MPEG2 Audio Codec:
Satelite/CableTV Provider:
HTPC Case:
Cooling:
Power Supply:
Remote:
TV:
TV - HTPC Connection: VGA - Scart Converter

Using the TV Server/Client from SVN 24 Okt, around 20:30

If I zap fast using the number keys on the keyboard, zapping stops, although the OSD (using the F7/F8 keys) still seems to work.

Log & errorfiles appeared to be over 3MB large, so something is wrong