Whenever my iMac goes to sleep for more than 24hrs it does not wake up again. I am forced to turn it off and back on. This has happened 3 times in the last 2 weeks. I have the BT keyboard and Magic Mouse. I click the mouse several times, push several keys and still nothing. Is this a BT problem, or something else? I have never had any BT disconnect problems with the computer running. Although, if the mouses batteries die befroe I change, it never reconnects once I change the batteries. Its really annoying that I cannot keep this machine running days at a time without a reset. Any help/suggestions would be greatly appreciated.