When I try to use one of my pictures for a wallpaper I get to the screen where I am supposed to be able to "Move and Scale." It allows me to move horizontally, but when I attempt to "Scale" it always pops right back to the original size. Is this a bug, or am I doing something wrong? Thanks, Tim P.S. This has been bugging me since the day they came out with iOS 7, but it's finally annoyed me enough to ask about it.