I'm sure there must be really obvious answer but I'm too dense to find it... The OSX Preferences let you set a folder of desktop pictures and it works great, except if I have photos that are not the size of the desktop. Then, whether I choose "Fill Screen" or any of the other options, I will get some photos displayed with the bottom and the top off-screen. Is there any way to get OSX to scale the picture to fit correctly on the desktop (including taking into account the menu bar at the top would be nice..)? Alternatively, is there any software which does this?