Desktop Wallpaper Changing on its own(MBP)

[browniepants]

my MBP 15" desktop wallpaper keeps changing on its own.
I've went under system settings and made sure that "automatically change wallpaper" has been UNchecked. PLEASE HELP.

 

[iLog.Genius]

Try resetting your PRAM:

On boot, press and hold command+option+P+R until you hear 3 startup chimes then release.