Three year old N80, well taken care of, never dropped. Double A battery pack. It refuses to load a roll of film as of today. There has been a general problem for the past year or so with fully rewinding film. Instead of getting the roll back to 'E' it gets to '0'. I then have to press both rewind buttons and sometimes it fully rewinds. The last roll made a strange clicking sound with each advanced frame. Now when I try loading a roll it tries to wind it but gives up after three seconds and displays 'Err' on the lcd. I've tried multiple rolls at various lenghts and nothing. The film advance area appears to be OK. It's as if the film isn't catching the winder. I'm not near a Nikon dealer so I'd like to fix it myself if possible. Any suggestions?