hi guys new to mac bascially well kinda lol my friend gave me an ibook g4 12inch yea i kno old but it was jsut givn to me cuz wasnt working and i work on computers windows more this is first with mac but kinda a little bit same but anywayssss the backlight turns on but there is no picture turns on and all iw asnt sure if its was the display or logic board so before i go off buy a display and its not that and waste money on that when somthing else is causing it thing ya kno..but does anyone know what could be causing this i had it apart checked see if like lose connections or what but everything looked fine please help guys thanks!!