My Minox 35GT, a camera I am very fond of, appears to be no longer. I ran a test roll yesterday and it came out completely clear (e.g. no frame markers and not even a faint trace image). I verified that the film was in fact winding through the roll and was being taken up (by virtue of the tension on the winder and seeing the rewind wheel spin). The roll even stopped at the last frame. I also verified that light was going through the shutter and that the shutter mechanism was working. Short of COMPLETELY expired Xtol (slightly possible but seems unlikely), anyone else have thoughts on this? Thanks much!