Okay, maybe I'm missing something here. But I had my Nikon D300 for close to a year now. I have started experiencing problems with this camera when I place the camera into A,S, or P modes. For example, when I place the camera in Aperture priority mode, the camera places the shutter speed in an unrealistic shutter speed (an extremely low speed i.e. f6.3 at 1/15 and another example the shutter speed keeps going up and down constantly even when I'm trying to take a pic). This happens when I adjust to other specialize priorities on my camera. However, Manual mode works just fine. I change lens, it still happens. I'm thinking it's something internally wrong with the camera. Any advice?