All, I turned on my computer this morning, wiggled my MM. No response. Pressed the Volume up on my wireless keyboard. No response. Glanced up at the toolbar of my Macbook (unibody 2.4ghz 4gb ram). And the bluetooth icon disappeared. Can somebody please help me? This has happened once before but I ran a hardware test (which 'Passed') and Bluetooth was back. However, I tried this same approach and it didn't fix it. Does anyone have any advice. I'm writing a thesis at the moment so I can't afford to lose the mac for a week with Applecare.