Fedora :: F12 (32bit) Installation - No Sound But Equalizer Moving

I just installed Fedora12 32bit and I have no sound. I've tried reinstalling and updating PulseAudio, but I don't know if it's just my settings or my drivers or what. (And no, it's not muted).

O/S information:
Code:
[Darksun@darksun ~]$ uname -a
Linux darksun 2.6.31.5-127.fc12.i686 #1 SMP Sat Nov 7 21:41:45 EST 2009 i686 i686 i386 GNU/Linux

Hardware Information:
Code:
[Darksun@darksun ~]$ lspci
00:00.0 Host bridge: nVidia Corporation C55 Host Bridge (rev a2)
00:00.1 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
00:00.2 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
00:00.3 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
00:00.4 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
00:00.5 RAM memory: nVidia Corporation C55 Memory Controller (rev a2)
00:00.6 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
00:00.7 RAM memory: nVidia Corporation C55 Memory Controller (rev a1) .....

Aside from not having sound, my players are acting funny. If I go to load, say, an MP3 into XMMS, it only attempts to play a song for 1 second and then stops. (no sound comes out, but I can see the equalizer moving for a second like its' trying).