I used to have an IPv6 tunnel on my old machine, but since I moved to a new desktop I didn't get around to setting it up again. That's gonna change today. First of all, why would you want it? Well, read on :)
By default, Windows Vista synchronizes once every 7 days with time.windows.com along with every other user out there. Let's change this to sync every half day with several NTP servers to get a more reliable time.