Help wallpaper changing

[jeffi]

Hello, my wallpaper seems to change itself after i press the kill app option thats on top of my app drawer. No apps are killed that should effect change of wallpaper. It's a wallpaper that's not even on my phone, i cant find it anywhere, i dont know where it is coming from. It just started doing this for no apparent reason. If anyone has any suggestions, i would really appreciate it. Thanx for your help. Samsung fascinate.