I know I had a thread about this and I looked in every forum and can't find it.
As I said in that other thread, my MP700's screen was really loose when I got it and the epoxy fix didn't help. Now I noticed the auto on/off on li open/clsoe was no longer working, I later noticed it's the screen part that was prying itself open. After a few tried I managed to pop off that long thin plastic cover over the screen hinge and the left screw was almost completely out. I tightened it and now it auto suspend works again, and for the first time my MP700's screen feels like new.
It was annoying having a screen that was practically dangling off the keyboard and really had me worried about how long this would last. Luckly I found the root of the problem before it got too late, I wish I had tried to open that narrow cover before.
Anyway just thought I'd let anyone know because the problem can be due to the screen screws also, not just the bottom screens.