This has happened in the past but not frequently enough to bother me but finally decided to see if anyone else is experiencing the same issue. Once in a while (for me, probably once every one hundred shots or so), the camera decides to lock up. I'm not quite sure when it happens but when I take the camera out of the bag during some hiking trip, it isn't turned off and it is displaying a lot of info on the screen along with some ISO numbers at the bottom of the screen. On/Off switch does not respond. I need to remove the battery then put it back in. Then everything is good. I believe I am on the latest firmware so I doubt that is the issue. I think this happens when I try to turn the camera off but I'm not 100% sure because I don't always check the LCD after turning off the camera. Anyone?