Without warning, I have lost my viewfinder grid. Yes, it is turned ON in the Custom Setting Section of the Menu. What shows in the viewfinder now is a long, horizontal rectangle with partial grid above and below it. I can also see my single point focus point. One person at B&H suggested that another setting could be interfering with it in some way. I do not have a clue what that might be. Has anyone else had this issue or know a fix I could try. I hope I have provided enough information to provide some clues. Many thanks!