M-Audio audio firewire driver 1.8.4-3 working in Snow Leopard
 

My M-Audio Ozonic keyboard/audio interface worked with PT8cs3 in Snow Leopard.
BUT - when I then formatted the drive and did a clean install of Snow Leopard, the M-Audio could not be found.

After reading a post by blakegaston in the M-Audio forum, I found out how to get it working.

http://forums.m-audio.com/showthread.php?t=11666

DON'T do a clean install of Snow Leopard unless you have saved the M-Audio files first.
Best to clone the drive first before you try this.

Hope this helps.

Richard