I have an on-board via sound AC'97 and since via hasnt released drivers for the kernel of knoppix 3.2 so i installed ALSA (thanks to the other posts on this site) but now CD's sound perfect and MP3's and wavs have some crazy buzzing noise in the speakers, my startup sound is messed when i log into root, XMMS is buzzing and the MP3 player in limewire is doing the same buzzing. the card works fine in XP, which i dual boot here is a portion of my lspci

00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233 AC97 Audio Controller (rev 50)
Subsystem: VIA Technologies, Inc.: Unknown device a003
Flags: medium devsel, IRQ 5
I/O ports at e000 [size=256]
Capabilities: [c0] Power Management version 2

i cant seem to find help elsewhere so thanks in advance for any help!