i have an hp pavillion dv4000 laptop that wont turn on. the laptop was sitting on a coffee table plugged in. my girlfriend tripped on the cord and laptop fell onto carpet. next time i used it, it was working fine. i was using it while it was plugged in. the low battery message appeared as if it wasnt plugged in even though it was. then it died and wouldnt restart. i brought the power cord to circuit city where they plugged it into another laptop. power cord worked fine. i removed the battery and plugged it in, nothing worked. I am not sure what to do next. i never had any problems with it before. oh ya the power indicator light on front of computer doesnt come on at all. please help!!