When dealing with Dual-Boot labs, Windows-focused IT guys are usually involved (not always the case, I know). I tell them that they need to have a timeout reboot ready, and map the "logout" and shut down" buttons to the "restart." They say that that isn't a problem, and move on. I'd love to know those steps as well, so it would be great if the Windows gurus on the list chimed in with a link or collection of steps.