The specified user already exists

I cannot join a server with 2003 standard to my 2003 domain.  Error states "The following error occured attempting to join the domain "mydomainname".  The specified user already exists
brentjenAsked:
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Justin CAWS Solutions ArchitectCommented:
Is there another computer on the domain with the same computername as the one you're attempting to add?
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Justin CAWS Solutions ArchitectCommented:
What are the steps you're taking to join it to the domain?  Are you trying to simply add it as a member server to the domain or are you using DCPROMO to make it a Domain Controller?
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brentjenAuthor Commented:
right click on my computer, properties, computer name, change, member of domaihn (domainname), i enter administrator, password and it gives me the error
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brentjenAuthor Commented:
no there isn't, that is what i cannot figure out.  i even tried changing the computer name
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brentjenAuthor Commented:
Thanks I figured it out
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MetallatorCommented:
More simple solution: Remove the computer from the Active Directory under domain controllers.

I did a reinstall of an existing server and got this error. I checked the AD and the computer was still present. Removed the old record and I could join the domain again.

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