Vista not playing well with IPv6

"Microsoft acknowledges some 'compatibility issues,' but calls operating system its best ever"

In the meantime, vista machines are unable to send printer data over IPv6 without corrupting the data. That's quite a compatibility issue alright, when IPv6 is supposed to solve the looming IP shortage within years.

Common Microsoft™ *RTFM*! Or in this case: Read The F***** Specs.