"I haven't installed or ran Groove in probably a year. Since it may be of use for a book project I am doing, I downloaded the trial of Groove Virtual Office 3.1 and installed it on Vista. Not only did it install and run, but it runs really fast. "
(Via Sam Gentile's Blog.)
Wow thats a surprise. When I tried groove for a team project at the university, it was dead slow. So slow, that we gave it up.