Loosing Channel Data (1 Viewer)

[Eeyore]

MediaPortal Version: v0.2 Patch 4
MediaPortal Skin:
Windows Version: Win XP Home SP2
CPU Type: Intel Celeron 2.8GHz
HDD: Seagate SATA 250GB
Memory: 2x512MB DDR2
Motherboard: Dell/Intel
Motherboard Chipset: Intel
Motherboard Bios: AMIBIOS
Video Card: Intel 82945G
Video Card Driver: latest from Dell
Sound Card:
Sound Card AC3: no AC3
Sound Card Driver: latest from Dell
1. TV Card: Compro DVB-T300
1. TV Card Type: DVB-T
1. TV Card Driver: 1.3.3.9
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: MPV
MPEG2 Audio Codec: MPA
Satelite/CableTV Provider:
HTPC Case: Dell GX620 SFF
Cooling: standard dell/intel fan
Power Supply: yumcha
Remote: Compro
TV: Samsung 32" LCD LA32T51BX
TV - HTPC Connection: DVI


I have a problem, that for no reason, a certain channel looses the Video ID and Audio ID information. Where do I start to look to find the problem?