Actually a friend of mine who just switched to the Mac is having this issue on his G5 iMac that is running 10.4.1....
It just started a couple of days ago (about two weeks after upgrading to tiger). He did just recently uninstall a few apps but all but one were just dropped into the trash. The one that wasn't an easy uninstall was Virex 7.5 which wasn't uninstalled properly (spotlighted virex and deleted everything found).
But I have to say I can't think any of this has anything to do with his problem. He first noticed that he couldn't get the sound to work on Windows Media Player over the internet. Then the sounds stopped in Entourage (simple system sounds) and I tried PowerPoint and no sound there either... but on every other application I tried there was sound.
Anyone have this issue? Anyone have a suggestion?
Thanks.