We have a mac mini (snow leopard) hooked up to some security camera's in our office. It displays the camera's on a web page on a white background. Trouble is because it's being displayed on a plasma we're getting a bit of screen burn. Is there a screen saver that can help with this so we still get to see the camera's? like something moving around the screen or something, or one that displays an image now and again but reverts back to the desktop?? Also I found this http://www.jscreenfix.com/ but can't seem to get the free version to do anything.