There is no video output from the Toshiba Satellite L20 laptop either on LCD screen or on the external screen, when I press the power button, I can see all the green lights near the screen turn on and off, the power light stays on and the cooling fan stays on. I checked the harddrive with an external adapter and found working ok. I removed the battery and pressed the power button for long time for several times, just one time when I pressed the power button I could see the toshiba screen for a second then just blank with a backlight, nothing happened like this after I tried the same thing agin and again. Is it the motherboard? I could not find any replacement motherboards from google search, please help..

Computers & Internet - Ultra