Anyone else having this problem? It will randomly go to minimum brightness when I touch the screen but when I go into Settings the slider is still set up close to high where I left it. I have to move it back and forth a little to get the brightness back. It's really annoying especially when outside because then I can barely see the screen to restore the brightness. I've already tried powering it down completely. Maybe a full factory reset is next? I assume iTunes will restore everything back to normal, right?