In Mountain Lion, I downloaded Bean's Quest Final from the Mac App Store, and when I tried opening it, it said it required XQuartz. I downloaded it and installed it, and I would like to uninstall it now, but the only instructions I can find to do so are for former OS versions. These are the instructions, but they seem to only specifically mention Snow Leopard w/ regard to a complete uninstall: http://xquartz.macosforge.org/trac/wiki/X11-UsersFAQ The reason I'd like to uninstall XQuartz is that I've noticed everything in Mountain Lion with motion is blurry. I compared it side by side with a MacBook Pro running Lion, and things like switching spaces and scrolling are not blurry at all compared to my MacBook Pro running Mountain Lion. Given that XQuartz has something to do with graphics, I wondered if it could be the culprit. I obviously know very little about this. I called Apple, and they knew even less. They said they support no third-party applications, which I understand, but the representative I spoke didn't even understand what I was trying to tell him about this having apparently been an Apple technology in the past and it being the OS itself that prompted me to install it. Making me download XQuartz to run an application from the Mac App Store is not "it just works." Not to mention the inability to uninstall. The representative told me the only advice he could give me was to erase and install everything on the computer. But there must be a simpler way.