I just decided to format my XP computer and install Windows 7 (x64). I made no hardware changes. I went to the creative website, downloaded the compatible drivers for my card, installed them, ran through any updates..........and there is zero sound. If I try to play something in Media Player, the volume does show activity, and the progress bar does show it moving along, but there is no sound. There are no alerts from other programs. No sounds from anywhere or from any program. When I first tried to install, Windows 7 could not even detect the card. Solved that, but now I can't seem to get it to work. It had worked flawlessly in all my XP installs. There has never been an issue, so the issue obviously lies in Windows 7. This is a great 24bit card, it should not need to be replaced. All help is very appreciated. Thanks!