I wish I could think of a pithier title for this problem... Ever since updating to 10.7.2, when I disconnect my MBP (C2D 2.53 Unibody with the removable battery)from the external display the computer's screen has some sort of problem. When I opened my MPB after it had been connected to my external monitor for the first time, the display was ghosting (I think that's the right term). I could see everything but it was like screen brightness had been turned all the way down. Today, instead of ghosting the screen was a multicolor fuzzy blur, not so unlike what happens with some graphics failures. In both cases I can restart and the computer has been fine. I can reattach to the external display with very few issues. I suspect the problem could have something to do with one or all of the things I did differently this update. 1) I downloaded and installed the combo update. Software update was downloading so slowly I decided to bypass it. 2) I installed the update while the computer was attached to an external display. Carelessness on my part. I almost always run updates with nothing attached to the computer. There aren't any recommendations to run the updates with nothing attached (that I know of) so maybe this shouldn't be a problem. 3) The day before the update I finally ran the fugly ical fix (because it's hideous!). ?? If reinstalling the update might be a good idea, let me know. Maybe this is a common problem?