One of the cool features of the new “Virtual Server 2005 R2 SP1” is the fact that you now can take back-ups of your virtual servers . I am running the older Virtual Server R2 (w/o SP1) on production, and I would like to upgrade to the latest version to be able to backups my server. Has anyone done the “UPGRADE” succesfully? or do you need to save your data and do a clean install? Any help will be greatly appreciated.