Change wallpapers automatically in intervals, even stretched, with ScrollWall
ScrollWall can change your desktop wallpaper automatically in fixed time intervals.
You can also set it to change the desktop wallpaper at every startup.
The set of wallpapers can be selected by you and can be modified whenever you want.
There is no limit on adding wallpapers; You can add your favorite wallpapers in a multiple selection mode; Wallpaper positions Tile, Center, Stretch; Time interval between wallpaper change can be set as low as 1 second.