I'm experiences serious screen tearing (if that's the correct term) with the new rMBP. Here is an image of my screen: https://dl.dropbox.com/u/345710/photo.JPG The tearing starts pretty randomly. Sometimes every 5 minutes, sometimes it may take a couple of hours. I have previously used Retina Displaymenu V0.2 to enable the unscaled native resolution. I have stopped using the program and reinstalled Lion using the recovery part ion (retains user files and settings). The problem still persists. Any ideas? The screen can be cleared momentarily by using Expose to reveal the desktop; this appears to "wipe" the screen clear for a moment. A more permanent effect (5 minutes to few hours before the problem reappears) can be achieved by changing the resolution or by booting the laptop. I think that my only option is a complete reinstallation of Lion. It's hard to imagine that this would be hardware-related (?) because the screen can be cleared for a while by changing the resolution. UPDATE: The computer was in 2880x1800 mode when it woke from sleep and now I can't change the resolution anymore in System preferences -> Display settings! Haven't tried booting the computer yet but this is pretty worrying. Despite the reinstallation of the OSX the Retina Displaymenu V0.2 still appears to have some effect on the computer. Perhaps people should use the program with caution. I have updated the title of the thread accordingly. UPDATE 2: Problem apparently fixed by disabling automatic graphics switching in system preferences. Retina Displaymenu V0.2 not involved in the tearing problem. Still kind of weird that the computer returned to the 2880x1800 mode even when I had done everything possible (except clean installation of OSX) to remove the effects of the program.