Toshiba Satellite A60

I need help with a toshiba sattellite a60, it accidentally felt (the computer was inside the toshiba´s case), the computer was in "hibernation mode", after this i tried to start up and the screen was black, and the proccessor´s cooler was like in stand by, I powered off and on like 10 times, and the computer still didnt work, I took out the batteries, i plugged the electric cord and still didnt work, after a few tries, the computer just boot and hang up after 2 minutes in Win Xp. I tried to start it up again, and the same happen, I did boot correctly a couple of times and after using for a little while the computer I shut it down and inmediatly i tried to power on and didnt work. well the problem is, only a few times the computer works, and it is totaly random. anyone knows what can it be?.
thank you.