Volume Control Wave Slider Problem.

[Angrboda]

I had the same problem once, but I don't remember what I did to fix it. It was likely either the drivers or some other program was messing it up. (Likely not the expected behavior for the other program; what little I recall is that something was misreading and coming to the conclusion that there was no sound hardware installed. That's the best I can remember. I'll let you know if I think of anything else.)