System Preferences Freezes on Open
Whenever I launch System preferences, it freezes up before the window appears. The computer acts as if it is open, but there is no window. It won't quit when I hit Command + Q, and all of its menu bar items (like Edit) don't respond. This all started happening after I restarted my computer to get Internet Sharing working. I'm not sure if it has anything to do with it, but I have a Logitech M510 mouse, which has two programmable buttons on the side. These buttons no longer work, but I can still click, right-click, and scroll. I have tried to launch System Preferences in 32-bit mode as well, and it didn't make a difference.
Does anybody know how to fix this?
iMac, OS X Mountain Lion (10.8)