Vista has this really cool feature. When I log in to work via VPN and then close my laptop's lid to put it to sleep, when I open the lid later, I get the CTRL+ALT+DEL login screen as normal, except that my mouse cursor is now invisible! If I can somehow manage to position the invisible mouse cursor over a button, let's say the one to shut the computer down, and I click it, Vista says something about not having enough memory to perform that operation, and crashes or hangs!
Oh wait, that's not a feature. That's a big hairy stinking bug. My mistake.