I have a black MacBook that I purchased in June 2008. Recently the screen stopped working. The screen comes on long enough for me to login but then goes black. I have restarted it several times with the same result. I did some research and thought at first it might be the inverter so I replaced it. However it still does the same thing, stays on just long enough for me to login. I connected it to an external monitor and the computer works fine. I'm thinking either the backlight or screen. Any ideas? Thanks!