I have a warning symbol that I can't get rid of. I tried to download a photo in a brief moment when I had no Internet connection. It flashed a "Download requires network" warning on the upper line, then I got a connection and the photo downloaded, but the warning won't be cleared.
I've tried powering down, reset (power and volume down until reboot), checking for running programs that might explain it, and finally, erasing the photo (.img download). It came from a trusted source, my very secure work computer, and was a picture I forwarded to myself, taken on a secure work blackberry.