Hello, you guys!!! My laptop won't start after updating itunes. It sort of told me to restart my laptop after and when I did, it automatically shuts down. like literally shut down. When I turned it on, the screen just stays blank and nothing happens, it does that for about a few seconds and automatically shuts down again. I tried clicking F8 or F11 or F12 on every reboot but still nothing happens. I'm afraid to do anything else. I don't have a recovery disk or any of the sort because when I bought it, my laptop has a build-in recovery program inside or something. I really don't know what do. Please please help.