I have a 3 year old Toshiba L655D-S5050. The Display would not come up most of the time. if I connect the VGA port to an external monitor it works well and displays correctly. Although I did not find anything wrong with the LCD Screen, I went ahead and changed it. Still no dice. I then replaced the inverter cable that connects the screen to the motherboard. It still does not work. At this point I suspect the motherboard connector tot he inverter cable to be faulty. Any ideas other than replacing the motherboard?