My new 2.4ghz MacBook arrived today and while i was setting it up atone point the screen went black with random stripes of colors where normally the bar at the top of the screen is showing up. So i forced a reboot and my mac wouldn't start and made several quite low pitch bleeping noises. So i took the battery out and put it back in and restarted and it booted up normally. I then played around with it for about an hour and closed the lid, when i opened the it again the screen stayed black and would not come out of sleep mode so i forced another shutdown and once again i had the same bleeping noises and had to remove the battery for the macbook to start up again. Anybody experienced similar problems? if so what did you do about it? Thanks for the help.