I just installed vista and trying to work out all the kinks in it. One of the problems I am having is getting my admin pack to work correctly. When installed it I can access DHCP and view all my network segments just fine but when I try to access active directory I get the following error “MMC could not create the snap-in”

Is there an administrator tools made just for vista (Admin pack) and if so where can I download it? I have been searching the Microsoft sites and trying to locate any mention of this problem but I have been turning up nothing.