Mar 26, '03 09:46:00AM • Contributed by: mrbiiggy
Once you have enabled desktop rotation via the Desktop preference panel, open up ~/Library -> Preferences -> com.apple.desktop.plist in your favorite text editor. Look for:
<key>ChangeTime</key>
<string>some_number</string>
Change some_number, in seconds, to something you'd like to use. Changes take effect the next time you login.
[robg adds: You can probably force the change to take effect by restarting the Finder. As a side note, setting the picture to change every one second is probably not a good thing to do! ;-)]
