Ok guys I need some help here, a few months ago I sold my iBook to a friend who was and is still new to not only macs but computers in general. Anyways I have no idea whats she's done but when i power up the iBook the screen doesn't come one even though I hear the tone and the computer booting up. She says she was doing something when all of a sudden a screen with different languages came up telling her to reboot. When she did the screen never lit up, any ideas would help.