OK, I have a DS Lite, it's a few years old but hasn't had any problems, I try to take good care of it and I only dropped it a couple times. However, I've been having a problem with the top screen, if the hinge moves a slight amount, most of the top screen sort of flashes green, and it's annoying and makes it hard to see the game. Is there a way to fix this? I don't really want to have to replace the screen...