wine users - May 2008 - [Ubuntu 8.04][Audio+Games]No sound if I'm listening to music

Hi! I have a problem.If I want to play quake 3 in wine (RC2) while listening to
music with rhythmbox, q3 has no sound.If rhythmbox is closed q3 works fine, so I
guess rhythmbox keeps busy the device.. there's a way to listen and play in
the same time?[/i]

This is because of pulseaudio. I had the same issue. Try the following command
from a terminal...

pkill pulseaudio

Then it should work ok (At least it did for me).