The dreaded "ERR" message! My D3 shows the "ERR" when I point it at bright light. If I shoot at the floor or ceiling the D3 fires so fast and as soon as I point the lens at the window (daylight) it flashes the "ERR" and locks up. I end up with the D3 paperweight until I click off the "ERR" by pointing away from daylight. Any tips out there?