For those of you using the Supreme FXII soundcard that came with Asus's P5 series mobos and can't get the drivers
to work with Windows7, I found a workaround: The driver
installation CD that has the drivers will not work with autorun; it comes up with an error that its files aren't compatible with the current OS (duh!)
So what I did was opened the cd to view the files on it and go to drivers>audio>vista>setup. Make sure to use the setup file with the installation wizard icon.
Double click on it, and it will install the drivers as well as the software you need to use the card's features.
Hope that helps anyone else who's had trouble getting it to work.