On my Stratosphere, I changed my wallpaper yesterday to one of the "Live" wallpapers, and decided to change it back to my original one shortly after. Now, when I slide the phone open, the wallpaper doesn't stretch across the screen like it use to. I'm not sure what happened, or if I accidentally did something to it. The Auto Rotate option is checked, so I know that's not the problem, but this is really annoying, because I see a square of my wallpaper, and then black around it. Please tell me there is a way to fix this.