http://www.audioforums.com/
Funkysurfer,
Check out the link above. Lots of discussion over the past couple of years about this. Frankly, I haven't visted this question in a while, but my recollection is that while most cards/interfaces are theoretically compatible with AMD processors, they are all tested on and developed with Pentiums in mind. The result was that many people experienced problems when they used a different processor. This may have changed with the latest generation of cards/interfaces --I just haven't focused on it in a while.
Good luck.