My problem was more like the MLU was engaged & the camera wouldn't fire until the shutter release was pressed again- if fired at all. Today, when I first picked the camera up after it had been sitting, it would not focus and the # of focus points had changed from 9 to single point & I was unable to change any camera settings. After cutting the camera off & on several times it began to focus & the focus points went back to 9. Then the camera started the locking up, if that makes any sense. All of the days the camera did feel very hot.