Please Help: I'm a newbie at replacing DMD's and I can't seem to remove my original TZ screen. I've taken off the 4 little nuts at the corners and there doesn't appear to be anything else connecting the screen to the panel. However, the original screen won't lift off. It seems like if I were to pull any harder on the circuit board, it'll flex and break! It's not budging from the panel - almost as if the face is glued down. What am I missing? Thanks for any input!