This has started to happen randomly and I'm getting kind of worried about it. Sometimes when I'm using the iPhone, I'll be in an app, such as Mail, and will his the home button. When I do, instead of going home, the screen will shut off. It will stay off until I press a button, such as the home button, then it will come back on, do whatever it was supposed to do the first time I pressed whatever button it was... then immediately do whatever the second button press told it to do. Any opinions? Is this happening to anyone else? I've never dropped it, gotten water on it, or anything... I just wanted to see what other people thought I should do. It doesn't happen too often. Maybe like, once every day or two. But still, I don't want it to get worse.