mmmm.... I think it is just a trick. Run the program and it slightly dims the screen over a few minutes and then, wow - it cleans the screen for you making it look all nice and bright. I left it running by mistake and it cleaned my screen twice and the result was equally impressive the second time around, so may the first didn't work, but no, I saw it doing its job, so maybe it is just a very clever little program that fools us! Good work guys, but what about something useful!