I just got my HTPC put together and running and tried to watch TV with media center, but the reception seems really bad and if I wait long enough it disappears altogether. I installed the latest drivers for both the video card and the TV card. It's running with 2 GB of RAM and a Core 2 Duo, so I don't see what the problem is. Any ideas/thoughts/tips?

Edit: Also, there was lag on the video - about 1 second - I know because I had TV running through my VCR at the same time with audio outputting and the sync of that audio with my HTPC video was way off :/

Thanks