The only ATI product that I would get is the all in one TV Wonder
I didn't play with any settings and get a great image, even better when recording hi def
I'm just wondering if it's some setting that you changed.
Maybe delete it and start over using factory defaults?
Win7 64 bit
Intel i7 920 watercooled
Asus P6X580 Premium mobo,
GTX280 GPU watercooled
Synology NAS 207 Network Server with 2 Hitachi Terabite drives
LG NAS N2R1 with 2 ea 2 tb drives
LINKSYS PLK300 Powerline Network Kit