First off i've been running my MacBook off just the power cord with no battery since i've been in bed for the past 3 weeks after a surgery. I bought this macbook in early 2008 but for the first time my screen will randomly go dark. i found the best way to bring it back is simply to close my macbook and reopen it and it is back. but the computer is still running when it goes black. it doesnt shut down or anything. the problem seems to occur when its running at full power. (game open ichat and itunes up.) though i havent had that problem for the past year and a half. i tried updating all my software and still i have a problem. so i want to know if anyone has had this problem or is it just me.