Did your system come with the TV card? or is this an add on? Mine came with it.. havent had an issue yet with it at all...Have you contacted Win-TV? They are pretty good on service. Have you tried uninstalling the driver all together and doing a clean re-install? ( Might want to use a driver cleaner as well, although I have never had to..) May have to try to delete the registry for the card as well before reinstalling the drivers.. this has been a problem before with a currupt registry entry.