I just bouth from KEH a used N80. I had one in the past so I was familiar with its use. BUt this particular camera loaded one roll perfectly, but then that didnt work. I can make it load the film. I trying mobin custom setting 8 to 0 and 1, and reseting the camera using BKT and ExpComp buttons at the same time I also removed the baterries, pressed the shutter button several timas and nothing. I have an F100 to compare their mechanical systems, there is no apparent fracture in the little parts of the rolling cylinder. Everything seems identical to the N80, but the F100 loads the film normally. You just put the film in the right position, close the back door and press the shutter button and workds, but not in the N80 Any ideas? Do I need to send it to Nikon service?