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Running Atom D2700 (dual 2.1GH, 2GB mem, 32bit mode). When opening any app in Ubuntu 13.04, the display gradually builds up the app window over 5-6 seconds. All the functions work properly, just verrry slow. I loaded Lubuntu and the apps open instantly. Is Unity using a low level video interface because it doesn't have the correct driver? I even tried the latest Fedora 18, and it has the same issue but not quite as bad. I have Ubuntu 13.04 on 2 laptops that work great.