Resolution, Refresh Rates, Etc. don't match HDTV

[SpencerMc]

I've got a Displaylink USB DVI adapter and am attempting to hook up an RCA HDTV as a second monitor using it's DVI-D input. The only resolution Displaylink is offering is 640x480 with 16-bit color quality. Also, the picture is garbled and full of static, which I believe may be related to an incorrect refresh rate (I could be completely off base here, just a guess). Can someone point me in the right direction to resolve this issue? I'm running Windows XP, and I've attached the logs from the debug tool.

Thanks in advance.