The following tip comes from a Macintouch "Jagwire" reader reports: "... Once you install Jaguar, here's a cool trick brought to you by Quartz Extreme. It takes the current instance of your screensaver and makes it your desktop. Use the screnescreen.com aquarium for the coolest desktop your Mac has ever seen, you will have fish swimming under your desktop icons as you work. Just make sure it's the selected screen effect before running the command below. Open Terminal Paste this command: /System/Library/Frameworks/ScreenSaver.framework/Resources/ ScreenSaverEngine.app/Contents/MacOS/ScreenSaverEngine -background & (the ampersand returns the PID in case you want to kill it) to remove: get process # with Top kill PID Always kill the current instance before adding another, or you'll end up with multiples. Clears on its own when you restart."