I've had the elmarit 28mm on my M6 for the last week or so but today I went and changed to my summilux 50. I noticed that the frame lines didn't change so I tried my summicron 35 and the frame lines are still stuck on the ones for the 28. Nothing happens when I move the frame line selector, regardless of what lens is on or if there's no lens at all. What's weird is that I took a couple of shots with the 50 on, to finish out the roll and when I took the film out and closed the back of the camera the frame lines for the 50 were displayed. I tried cycling with the selector and the frame lines went back to the 28 lines. I tried all my lenses on my M-E and the correct frame lines are coming up, so I don't think the problem is with the lenses. Do I need to send my M6 back to NJ or is this something I can have a local shop fix? The two shops I called indicated that they send out for repairs but there's a shop close to my work that does do repairs in house that I'm planning to call tomorrow. Any advice or suggestions are greatly appreciated.