This will sound like a really small and basic problem, but no less, it is one. I've had my MBP for almost a month now and i enjoyed the aqua blue background. Recently i tried adding a folder an pick a wallpaper from there but it just wouldn't stay, log out, reboot, shutdown. The strange thing is that it would startup, and i would see the image i had last set, and after the load processes, it would just overlay my preferred wallpaper with the default. I searched various forums and googled hard for some answers but the search only turned up others with the same problem but no solution. Anyone have ideas? Cheers and thanks!