I'm so fucking frustrated about this. I have a MacBook computer and run Windows XP on the Windows side and recently lost sound. When you go to sound - its says No Audio Device is there, but it is and all drivers are updated. I have gone into Device Manager and confirmed all is there, but there is a yellow exclamation mark there. I've updated the drivers, uninstalled, and reinstalled it and nothing. My Windows Audio is set to run automatically. I have installed all Windows and Apple updates. I believe that the Windows update is the one that blew it away. I don't want to restore, but have tried 100 different things and still have no sound. Anybody have this issue?