I upgraded from a 13" Pro to my new 2011 11" MBA a little over a month ago, and I totally love it—when it actually works smoothly... My setup is pretty simple. I have the standard 128 GB model with 4 GB of RAM and a 1.6 GHz processor. I'm running OS X 10.7.1. When I'm at my desk, I put the computer in clamshell mode and connect a 22" monitor with a DVI adapter. I use an Apple wireless keyboard and Magic Trackpad, and I have several USB peripherals connected. When disconnect everything and take the Air out of clamshell mode, I am consistently met with the following problems: 1. Fullscreen apps are still fitted to the 1080p screen—they stretch off the edge of the laptop into empty space, and the only way to re-adjust them is to go out and back into fullscreen mode. 2. Almost every graphical effect in Lion becomes extremely laggy. This includes swiping between desktops, entering or leaving Fullscreen Mode in any app, entering Mission Control, entering Launchpad, and entering Dashboard. 3. Graphical glitches become more frequent as well—usually in the form of bits of the menubar or the Safari bookmarks bar sticking to the screen, even when using other applications. Sometimes the black "Apple" icon in the top left of the menubar will hover in place even as the rest of the menubar stays hidden. I'm experiencing other problems too, which may or may not be related—earlier today, the Pages app stole focus and wouldn't give it to anything else, including Finder and the Dock. I force-quit it, but when I opened it again a few minutes later, the same thing happened. I ended up just restarting the computer. Sometimes Safari bounces up and down forever without opening, until I finally force-quit it and try again. Mail, Contacts, and Calendar don't seem to get along with my fairly standard Gmail setup. Etc., etc., etc. I know Lion is still pretty young, but I run into this problem practically every day, and it's getting fairly annoying... Has anyone else had these sort of problems, or am I the only one?