My kids got my old Dell Inspiron 1545 laptop when I got a new one and have somehow managed to make it to where one of the keys no longer works. I've already re-seated the cable as well as pulled the key and hit the spot with compressed air. Still no dice. Anyone know how to get it apart? The bottom of the keyboard is covered in aluminum. I know from past experience with other PCB issues in other devices that hitting the spot with rubbing alcohol will do the trick. Yes, replacement keyboards are cheap ($23) but it seems kind of a waste to plunk down money when it's a single key.