Several months ago I purchased Griffin Technology's FireWave to listen to surround sound speakers on my G5. The performance has been spotty, at best. Two weeks after updgrading to Tiger (10.4.11--the recommended system software for FireWave), it ceased running at all. (Yes, I tried all the usual fixes). Now, I'm ready to try something else--something that works. Has anyone had any luck with other sound cards (internal or external) other than FireWave? Thanks.