I can't believe this is happening again I bought the Mid-2007 iMac in August 2007, soon after it came out. This is actually my third one - if you recall at the beginning, many people were reporting video problems, including myself, that were eventually fixed via a firmware upgrade to the video card. Anyways, it looks like video problems have struck again. I woke my iMac up from sleep today to find the screen looking like this: I'm assuming iMac #3 will now need to be sent in for repair?? Thank god I got applecare! I'm six days outside of the original 1yr warranty! If I drag a window around, I can "cleanup" the screen and everything seems OK. Kinda like using the eraser tool in Photoshop!