My CL has suddenly got problems with the shutter scale in viewfinder. I have run a 800 film and last frame I took with 1/250. Didn?t use the CL for a couple of days, loaded with 400 film. Now the shutter scale will move only between 1/250 and 1/1000. Meter is OK so it?s not a big problem but an annoying one. If setting time at 1/60 the vf scale will still show 1/250, if I then change the shutter to 1/250 there is a "little" springy sound. Anyone experienced this? Any quick fixes? I have tried gentle knockings on the camera to no effect.