I have a Konica Minolta Maxxum 7000. After loading it with film, I shut the back of the camera. The camera is supposed to advance the film automatically (as stated in the manual). However, it is not doing so. Any tips on why this may be/how to fix it? Sorry if this is not in the right forum, but I figured the camera is somewhat old and thought that maybe someone who has owned one might be browsing this forum.