This looks to be a hardware failure since at no time the screen seems to work proper. This means it's not a windows driver.
Figure about 1/2 the cost of the laptop at the repair counter if you let it slip out of warranty.
Want to try DIY repair? Here's a nice page of tips about laptop repair -> http://www.fonerbooks.com/workbook.htm
The top half of my screen is black, although the whole programme is on the screen....I just can't see it. I have managed to get the Control Panel, and then Display, but all the print is on the top half of the screen, so that didn't help....I can't get System Restore, I can't get the properties of the PC, because I can't read anything on the top half. Can anybody help me with this problem please? I've had 2 suggestions: one that it might be because the battery is half flat, but I don't think so!! Two is that it might be the board that supplies light to the screen.