Title says it all. It's frustrating having to completely shut down the xbox because an app decides it's going to hang on for dear life, and not actually be working. This is an ongoing issue, primarily with games i.e. BF4. Yes, yes, I know the game has some issues, but when it goes to a black screen and sits there, there is nothing to do but restart the console. So please for the love of all that's holy, add a feature so we can kill apps if they get out of hand.