I'm having an issue where the Magic Mouse stops scrolling, etc after I wake the unit up from a sleep. It doesn't always happens but I've noticed it always happens when it takes about 10 seconds to get the machine to wake up instead of the normal 1-2 second wake up. I called apple care and the rep said to disable the feature allowing the hard drive to shut off while on sleep mode. Has anyone experienced this or have any solutions? I must restart the machine in order to get everything working properly. From my gatherings, it seems to be an issue with the Bluetooth.