So I have been having a problem with my screen not timing out. I have my time out set to 30 seconds but I've been letting my gs3 sit for minutes and it won't time out sometimes. I thought it was a game that I was playing bc once I killed that app it would time out yesterday, but not today. I killed every app except avast anti virus, SwiftKey 3, and advanced task killer. I'm running jelly bean on at&t. Has anyone else come across this and/or know how to fix it?