Alright, my Thinkpad T60 decided to stop booting. I've tried all the obvious already. Anyway, when I start it up, it shuts down in 3 seconds. All the lights act normal, but no display. To get it to boot again, I need to remove the A/C and the battery. When I plug in the external VGA, it boots like normal. If I hit FN+F7 (LCD/External toggle), it powers off. What could the cause be? I was thinking a shorted out ribbon, are blown fuse or a faulty LCD, but it may be something else. Thanks in advance.