Well, this might be a clue... my screen has no Nikon markings on it. Perhaps it's the wrong type for my camera or an inexpensive aftermarket piece?
Here's a couple pics for those that like pictures of beat to hell cameras. The prism is dented but I can't find fault with it when looking through it off the body. I really love the way it feels... a bit like an old friend. Not that I feel my old friends or anything.