I bought an ATI TV Wonder HD 650 Dual Tuner that says it can play digital and analog and function as a DVR. I have Windows 7, 32-bit OS. I have Comcast and a cable modem so I split the signal between the cable modem and the TV tuner card. I ran the setup in both Windows Media Center and ATI's own media center. Everything seemed normal except that neither setup found any analog channels. I now can view only 16 digital channels; all the rest are snow. Can anyone help?