I had the same issue with my P67II during the winter of 2005 while on a 5 week road trip in the Colorado Plateau. Being the week between Christmas and New Years Day, I took a chance and drove 150 miles overnight to Salt Lake City where a Pentax Service dealer (Fosters Camera) is listed in the lens literature. They were open but the only one who could fix the camera, if it could be fixed, was the owner who was off. They called him up and he said that if can fix it it would cost me $150. He came in and at noon had my camera back working. The camera worked fine for about a year and then the same thing happened. I sent it to Pentax in Colorado and they rebuilt the winder mechanism with a repair bill of $150 labor and around $30 in parts. It's a mechanical issue.