Any body out there have experience replacing a laptop screen? Don't have any problem replacing the screen but I'm not sure if it's worth doing. The laptop was given to me with the screen broken. When I plug the power cord in and turn on the unit, nothing happens; no beeps, no lights, not even a sigh. I'd hate to buy a used screen, only to find that the rest of the unit is fryed due to the obvious fall that it took. Any suggestions?