I have a Lenovo u410. I put a new Lcd in, and it was working well, until about half an hour later the computer instantly shut off. I figured I missed a low battery warning, so I plugged it in, and i got nothing. When I plug it in, the battery light turns on for a couple of seconds and then turns off. It used to blink in about one second intervals after that, but not today. I've figured out that the computer will turn on in if I press the power button before the battery light goes out, but it loads the Windows logo and says "preparing automatic repair" for a second before instantly shutting off again. Any ideas?