Can't play audio cds SuSE 9.0

Hello. I recently upgraded from 8.1 prof to 9.0 prof. Sound never really worked on 8.1 however, upon installing 9.0 (sony viao laptop) sound works great, I get the kde start up music, real player not only works now, but it has sound too, event sounds for all applications work, etc. However, last night I shoved in an audio cd (first attempt at playing and audio cd), and it acted like it was playing the cd (tried in the kde cd player, xiam, etc in all cases the artist and song titles populated and everything), but I could hear nothing. I checked every volume control I could find and they were all turned all the way up. Any ideas on where to go from here? TIA! Daniel