Cant watch DVD anymore (1 Viewer)

[josch.hh]

TV-Server Version: 1.0
MediaPortal Version: 1.0
MediaPortal Skin: Xface
Windows Version: Vista 32bit SP1
CPU Type: AMD Athlon 4850e
HDD: Samsung SpinPoint M5S HM160HI
Memory: 4GB DDR2-800
Motherboard: Asus M3N78-EM
Video Card: Nvidia 9500GT
Video Card Driver: 182
Sound Card: Onboard Realtek ALC1200
Sound Card AC3: optical out
Sound Card Driver: 2.13
1. TV Card: Technotrendt S2-3200
1. TV Card Type: DVB-S
1. TV Card Driver: 5.0.1.8
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: PowerDVD Ultra 7.3
MPEG2 Audio Codec: AC3-Filter 1.51
h.264 Video Codec: PowerDVD Ultra 7.3
Satelite/CableTV Provider: Astra 19.2°E
HTPC Case: Silverstone GD02
Cooling: Silverstone
Power Supply: Sesonic S12II-330
Remote: MCE Remote
TV: Philips Aurea 42PFL9903H/10
TV - HTPC Connection: Hdmi


Cant watch DVD anymore. MP tells me that there is no disk inserted.
PowerDVD plays that fine.
Must be somthing with me Codec.
Plz, see logs.