The overall question is: is there a way to adjust Windows Photo Viewer? (Win 7 Pro 64) I have a strange problem. Windows Photo Viewer is showing photos darker than other programs. I can open a shot in different editors and it will look the same. I can print it out and it looks the same. I can even put the shot in MS Word and it looks the same. But when I open it in Photo Viewer, it is darker even to my non-professional eye. I sent a tight crop comparison composite like the below to a friend and on his XP computer, the top lighter shot (the should be shot) looks correct while the other is darker showing the problem. When I look at the same comparison shot in Photo Viewer, the top is again too dark and the bottom is even darker. The top below looks OK and the bottom is too dark, as in the Viewer Any ideas what is going on??