I recall someone here posting that he played the Guinea pig and that the issue had been resolved.
Hopefully I'll get my replacement in a couple of days so I'll try if it's fixed, otherwise I'll just get another replacement. But I think it should be fixed with the latest Drivers.
EDIT: HA! I just got a notification by Apple Software Update for the Audio Driver saying that the exact issue I've had has been FIXED!


So they officially recognized it as a bug and the fix is available.