I've had the phone for a little more than a month now. But all of a sudden if i leave the phone without using it for a short period of time it will shutoff by itself. But if im constantly messing with it, the phone stays on. it is very irritating. Well i figured since ive only had it for a short time that it couldn't be the battery or anything. (the phone seems to stay on when im charging it though) anyone know the reason why its doing this?