hi, I have an ibook with an odd problem. It recently stopped working, so it got fixed, fixed again and finally was deemed dead due to a faulty logic circuit or some such problem. Upon recent examination, it does work, however the screen stays blank. ie. you can turn it on, it whirrs, the cd tray will open and when pushed; the num/caps lock lights turn on. Any idea what is causing this (i would open it, but i don't have a hex key small enough ). thanks, Whiternoise.