I have the Sachs Aquarium screensaver running as my desktop wallpaper.. if you have the plus pack for windows xp, you can have it too... for some reason it doesn't work with the full version of the aquarium screensaver, just the one that comes with xp plus. Just go to http://www.vital-desktop.com and download vital desktop.. it's a program that allows you to run screensavers as desktop wallpaper... you need a decent system though if you dont' want to experience slowdown. It works great with all my screensavers.. cool program