Yesterday, I noticed my iChat buddy list burned into my Apple Cinema Display. I am baffled by how this could have happened because I always use a screen saver and my display goes to "sleep" after only 10 minutes. So, here's my question. When I set my Display to "sleep" after 10 minutes, does it turn the display off or does it simply make the backlight turn off? Can the display still burn images into the screen if the backlight is off? Also, pressing the power button on the side of the display... is this the same as sleep? I'm confused as to how my buddy list was able to burn into my display because I really didn't use my computer THAT much. Also, I never actually turn off my computer or even let it go to sleep.... I only have my Display go to sleep after 10 minutes.... is this bad?