Hey everyone, I have a 17" iMac G4 with an iSub. After a short time playing music in iTunes (less than an hour) the beat of the bass is noticeably off from that of the music. I have to pull the USB cable out of the Mac, reinsert it, then it syncs up again for another half hour to an hour. Anyone else having this issue? I have the new audio driver update thing and that didn't solve the issue. FWIW, my machine also has the symptom of adjusting balance and iSub settings on its own, with no intervention in System Preferences from me. It just ends up all tweaked to the left or right every few days. Should I call Apple?