Question : missing the users & groups in my computer management

I am running windows 2003 standard, with SP2, and when I go to computer managment, -> system tools, on all my other servers, I have the users and & groups option, but on my DC, I don't.  I tried to add in Active Direcotry, but it won't let me, I keep on getting this error message: "the computer XXXX is a domain controller.  This snap-in cannot be used on a domain controller.  Domain accounts are managed with the Active Directory Users and computers snap-in."   Well, that's what I tried to add, but it doesn't work?
Any thouhgts on how I can get the users and groups back under my computer management?

Answer : missing the users & groups in my computer management

You can either put your account in the Domain Admins group (if you want to give it full administrative access to the domain), or you can edit the domain controller security policy to give your account the "Log on interactively" user right.  (The latter option is the more secure, but you won't be able to do much on that domain controller without admin rights anyway.)