Notice the date of release of this, ahem...software. Out of curiosity, to see if it really was just a joke, I downloaded this program and ran it on my G3 tower. About ten minutes later, I was suddenly surprised to see this blue rag randomly sweeping across my monitor, leaving a bright screen in its path. But if you let this program run for a while, you suddenly realize that your monitor very gradually darkens a bit, turning a very light gray, where it had been white previously, so that when the blue rag begins its bogus "clean-up", it really does look like it is working. Well, to prove that this is just intentional pranksterware on April 1st, wait the ten minutes until your monitor has that light gray "film" over it, and then shut down this program. Your monitor will suddenly brighten up to its usual self, and the "mysterious" gradual graying effect will stop. It's pranksterware, folks...and those who say contrary-wise are part of the joke, obviously...or maybe ignorantly.