Just yesterday when I select restart windows 7 it goes through the normal restart process, the pc shuts completely down for about 5 sec, then lights up and turns back on and reboots normally to the desktop.Also,when I select shutdown it says windows is shutting down, the monitor goes to standby, the keyboard lights go dark, but the pc power buttons are still lit up and the fans are still going, and it does not shut down.Even in safe mode, when I selected shutdown it hung and locked up and I had to press the power button to shut off. Anyone have any ideas.