My laptop made a loud noise last night and the screen went blank so I held down the power button to shut it off. Now it won't turn on at all. With the battery plugged in the light is on showing that it's getting power but pressing the power button does nothing. Any help is appreciated. Quick update. Now the fan spins and the power button lights up for about 5 seconds and then shuts off, turns itself back on and shuts off again. wtf?