I got a pretty well kept OM-1n a few weeks ago. Everythig was going well and then the camera started firing immediately after cocking the shutter. I kinda fixed it by pressing the shutter button and winding around ten times, and then it all came back as it should've been. I wonder if this is common, I read somewhere that this hapenned to someone and the camera died a few days later. Should it need a CLA?