hey man, im thinking im having a similar problem. I get the "Please restart your computer. hold down the power button for several seconds" display. When I drive around hard, it tends to happen. Just tonight, going to dinner I noticed that when I turn the power on, the mini will shut down, then turn on, fail, then try to turn on again. Either my electrical connector is loose and isnt in all the way or by my mini sitting in my glovebox in a weird angle it tends to not function properly.