I have them working on my 770X. For some reason I still have to run sndconfig after each boot though. And I needed a newer version of x11amp than came with redhat 6.0. I has been a while so I don't remember if there were any other troubles, and I'd done it under redhat 5.1 which required a kernel recompile, so my memory is fuzzy on just what I did this time. John