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Author Message   Jeff Polaski Tinkerer Username: Polaski Post Number: 3 Registered: 08-2006 Rating: N/A Votes: 0 Posted on Wednesday, August 23, 2006 - 01:16 pm:    Thanks, Glenn. I experimented last night with Ronsonol lighter fluid and then DW-40, but carefully applied them with a Que-tip swab. Nothing's moving yet, but it's a lot cleaner. (I experimented first with the gummy camera back opening catch, and it worked like a charm.) I'm not completely sure that the little nub is actually supposed to move, but I can't see any way that the frame size selection mechanism could work otherwise. I'd love to get a look under the spring mounted pressure plate, but it's rivited on (plate and camera back panel). Friday I'll pick up some rust remover at an old-fashioned hardware store and see what a slow weekend brings.