Can't restart system - MacBook Air
My MacBook Air ran out of battery life. I connected to a power source and fully recharged but I now get a thick vertical stripe about 3" wide (with vertical lines) on the left side of the screen, black on the right. I tried to force quit; nothing happens. If I hold down the power button the screen will toggle on/off and the power light on the front will either be off flashing as though the computer is asleep. HELP! What can I try to get this working before I need to go to the Genius Bar. Thanks.