Over time have started experiencing a problem with the camera. I will shoot a sequence or for that matter a simple burst and the camera responds as if I have the bracketing for exposure turned on...and it is off. Photos will be from over exposed to underexposed or vice-versa. I cannot seem to identify what is causing this. The local dealer was zero help and my previous experience when sending the camera to Nikon HQ was, they do very little diagnosing, but will replace any and everything ($$$). I shoot primarily action sports and this happens inside and out, daylight and night.