When I installed FC3, both my sound cards were detected - an M-Audio Audiophile 2496 (ice-envy24) and the onboard VIA AC97 (snd-via82xx). Unfortunately, neither play sound - when I do a test sound, play an audio file, a DVD, etc - no sound at all. I thought there was a problem with having two cards, so I pulled the M-Audio card, and now only the VIA chip is detected. Still no sound. Ran alsamixer and cranked all the volumes up - still no sound.
This machine used to run Ubuntu linux, and that would play sound out of either sound card, so I can't figure out what the problem is here... any ideas?