I may have purchase a flea off of fleabay. Really nice QL17, but the shutter doesn't fire. I have it on manual, not Auto. I shouldn't need film in the camera to make it click should I? Anything obvious I might be missing? It seems to wind, but I can't get the shutter to fire. Also, when winding, there is very little resistance (granted there is no film in the camera), but it doesn't feel quite right. Any ideas?