Tried searching quickly on this, but couldn't find anything. I've set my brightness to the lowest setting, and turned off the auto adjustment feature. I can't find any consistency to it, but every once in a while it will change the brightness on its own and set it at about 25% of the slider bar. This has happened to me a number of times since I've had the phone (about a month now) and have no idea what could be causing it. Any ideas? Edit: Forgot to mention that power cycling the phone doesn't seem to help.