Okay here's the story. Put MBP to sleep, went for a nap, come back and this happens.. Tried to get my MBP out of hibernate mode, and it doesn't. I can hear the fan turning and I know it's on but the screen is black. I hold the power button for a reboot, when it reboots I get to my login screen and try to increase the brightness, I start doing that and it completely locks up i.e. no mouse movement, nothing. Reboot 2: Get to the grey screen with the apple logo on and the spinny thing, spinny thing freezes, everything stops. Reboot 2: Don't even get the spinny thing, just a grey screen Reboot 3: Actually manage to log in, but everything's being slow and my AirPort cannot detect my wireless, even though every other appliance can. I click to turn AirPort off. MBP freezes again. Halp!