Best way to go about this is Settings>Application manager>menu (The key that is to the left of Home), then click reset app preferences. This will reset everything, but I think this method will be best.
I will try it. Thanks, I am quite certain that I did that. When I open gallery, I get an interactive map, with push pins. No pictures. I have to go to camera, to get to pictures. Perhaps the problem is something else?
FYI The problem in gallery - at the top of the map was a drop down menu. People, places, album, a few other choices... I chose album, and and I got in.