for nikon coolpix p600--my friend and i both have the same issue of flickering between auto and fi sunset when trying to take pictures. it makes it hard to take an image. it started going more crazy lately. then i switched to manual and thought that worked but some of my images that looked great in the viewfinder big screen area (sorry i dont know the name of it) was later completely overexposed. then i also noticed when i try to view images i only got maybe a tenth of 2 tenths of a second to do so until it turns off. f im really fast i can view maybe 3 (not very good but quick) before it turns off. anyone know what to do?