I have a Ti 500 which has developed a line down the screen. I also have an extra Ti 500 which I have been using for spare parts after it got dropped and the DVD player quit working and broke the screen locking catch. My question is, how much of a chore is it to swap the screens around on the two units. I do pride myself being competent at repairing hardware (both Mac and PC) but laptops always intimidate me and usually stay away from them. Also is there a way to replace the locking catch on my spare screen. The hook side is okay, it's the catch the hook "hooks" around is chipped and longer catches the hook properly. Thanks... -Paul