ummm... I really haven't messed with audio here... My first guess would be to make sure there's nothing muted in the mixer. then my next guess would be to check if you're running the same winamp in and out of RR, and verify they're using the correct output devices... The last thing I'd do is double check you haven't accidently set RR to mute any audio lines in RRConfig.. this is pretty weird... I never head of it working in RR and not in Windows (I have heard the opposite).