Jack

How old is the laptop?
Is it still under warranty?
Did you take out any extra cover?
If it is too old, it may be uneconomic to fix it and you may have to hit the sales. If you need the info off it you could always get an external case for the hard drive (cheap off the internet) and transfer onto another laptop/PC or just another laptop and put your hard drive in it (you will need to source any drivers required)

Cheers

Kev