I'm checking a Dell Inspiron my mother-in-law says won't turn on. When I plug the power supply into the laptop, the light on the power supply turns off, before even trying to turn on the laptop. I've tried two different power supplies that I KNOW work, but same problem. The very first time I turned it on, there was about 2 minutes left in the battery and then after it died, I can't get it to startup at all. Any ideas?