Every once in a while I will open my book from sleep, and it will stop blinking the sleep light, and make the normal superdrive noise, however have a completely black screen. I have to hold the power button to force a shut down, and when I turn it back on it on the grey screen comes up, chimes, superdrive noise, and then restarts again, chime, screen, superdrive, and starts normally. Really Weird, anyone know what gives?
Thanks,
CH