Upon upgrading 2.66 GHz Intel Core i7 Macbook Pro to OS 10.8.3 and running Software Update, having a couple problems. First, the OS closes desktop folders on it's own after a few hours. Second, whenever such folder-closing occurs, the very recently installed drivers for a Logitech G13 keyboard mostly disappear requiring reinstallation. Upon reinstallation, the keyboard "remembers" its macros, though. Not sure if the OS is returning to a previous state or what? Very annoying.