Any ideas? I'm using Vista Home Premium (URGH!) on my MacBook Pro for work purposes and I have no sound coming out of my speakers or head phone jack. Obviously the the sound controls on F3, F4 and F5 don't work on the Vista side, but even when I try to manually control the sound in the Taskbar, it shows that it should be working but it isn't. Also, has anybody else noticed that there is a red LED light that turns on in the headphone jack spot, when using Vista on their MBP? I haven't noticed that when I'm using OS X.5.