It is most likely the screen. You can try reseting the BIOS and see if that helps.
Turn off the laptop, take out the battery, unplug the AC Adapter, press and hold the power button for 30 seconds. Plug in the AC Adapter, turn it on once more, see if that helps... I'd make a backup of your files if your lucky enough to get into it.
You can always try taking the drive out and using it in another laptop (as a slave) or as an external drive. I do that for both desktop hard drives and laptop hard drives.. works great.