My 2002 iBook G3 notebook with OS X3.9 started acting up on me finally! 2 days ago i turned it on and it sounds like it is starting up normally, but when the screen comes on, it just stays lit up and black - i tried everything, from trying to adjust the brightness, to restarting it a zillion times to completely draining the battery and then restarting it again,......nothing seems to work right! Can anyone tell me what could be wrong, please? I thought it may be the backlight, but then the light does come on, and STAYS on - the apple logo on the back stays lit up even when i close the notebook. I'm not too much of a techie, so could someone please tell it to me like a child?