Originally Posted by themerinator
Actually, I've noticed now that it stops at random places. And I just ran a whole roll and the counter worked just fine. Hmm.
would be that the mechanism that prevents double exposures is sticking. Next time it jams, press down on the shutter release a few times and then try to advance the film. Greyhoundman is the expert on GSNs who could tell you exactly what the problem is.