image is fuzzy and pale (1 Viewer)

[deejam]

MediaPortal Version: latest
MediaPortal Skin: latest
Windows Version: xp home sp2
CPU Type:
HDD: 300 GB
Memory: 1024 MB
Motherboard: asus p5gpl-x se
Motherboard Chipset:
Motherboard Bios:
Video Card: 256 MB
Video Card Driver:
Sound Card: on board
Sound Card AC3:
Sound Card Driver:
1. TV Card: xfx nvtv
1. TV Card Type: single channel
1. TV Card Driver: mp01
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:

the image quality is a bit fuzzy and pale when watching tv. As a test I played a dvd from my pc and compared it with the quality of the image when playing the same dvd from my dvd-player, attached to my tv-card with an s-video cable. The last option can not be compared with the first, as I said, fuzzy and pale. I bought an xfx nvtv card. It was quite cheep but had very goog references due to the nvidea engine.
Is this a commom problem or is it the tv-card or perhaps wrong settings in MP?