I got the Folders app that was recently made available an installed it on my Lumia 920. I got it installed and figured I could work with it. I set up a folder to group about 6 camera apps I had on my phone together and did the same for a few GPS apps I had installed. So Saturday night, I went to the Cosmopolitan in Vegas for dinner at this place called the Wicket Spoon. Nice spot if you've never been. Anyway, out comes the Lumia 920 to snap some pics of my wife and son. I go to look the pics I snapped and my phone went black. Then I saw the Nokia logo. I said, seriously?? We walked on. Later I snapped a few pics and when I went to view them, same thing happened. Last thing I installed was Folders. Uninstalled. Random reboots stopped. Did you install Folders and get a reboot problem?