Thanks! I guess I should have thought of that. Somehow it didn't occur to me that I could still use the Alt menu with the screen off. It does still turn on the screen when it takes a picture, but being dark in between seems like it could save a lot of battery power. Just out of curiosity, does anyone know a way to make it stay off completely, that is, not even turn on when you take the picture? If you leave it going overnight there's no one to watch it anyway so you don't need it to show those shots.