Screen turns black when recording sets in

[ender]

CVS-snapshot from: 20:48 03-06

Windows Version: Windows XP SP2
CPU Type: Intel Pentium 4 3.00GHz
Memory: 2Gb DDR2
Motherboard: Asus P5GDC-V
Motherboard Chipset:
Motherboard Bios: AMI 10011.006
Video Card: NVIDIA Geforce 6600v+
Video Card Driver: Forceware 81.98
Sound Card: C-Media High Definition Audio
Sound Card AC3:
Sound Card Driver: 5.12.01.0008.62
1. TV Card: Hauppauge WinTV PVR PCII
1. TV Card Type: analog
1. TV Card Driver: Hauppauge 2.0.35.23348
2. TV Card:
2. TV Card Type:
2. TV Card Driver:
Video Codec: NVIDIA Video Decoder
Audio Codec: MPEG/AC3/DTS/LPCM Audio Decoder
Satelite/CableTV Provider: UPC Cable
HTPC Case:
Power Supply:
Remote: MCE Remote
TV:
TV - HTPC Connection: S-Video

I was watching a tv channel when a recording set in (a different channel). At that point the sreen went black. I could hear the sound from that other channel that was being recorded. MP wasn't running full screen and I could see that the caption of MP's window said 'OK dialog'. Obviously a dialog was shown. I had to press Previous button on the remote to go back to My Tv main and then I saw a dialog that all cards are busy (or something like that).

(The log could be a bit long, sorry for that).

Side note: after stopping the recording, timeshifting was still on. I didn't turn it on to begin with and it was very hard to make it stop. MP was verrry unresponsive at that point.