I am unable to DCPROMO my additional server

I am currently trying to DCPROMO my new server. I would eventually like to phase out the old windows server 2000 machine and consolidate. The new machine is currently joined to my domain.. along with the current existing DC with windows server 2000. The new machine (Server2003)- is a memer server right now, with the primary dns server pointing to the old machine, of course.

I run the wizard, it goes through a few things- stopping net logon service and such...then the error-
New Credentials
The operation failed because:
The Active Directory Installation Wizard was unable to convert the computer account Server2003$ (Server2003 is the name of my new machine) to a domain controller account. "Access denied"

Type the username and password of an account with sufficient privileges to create an additional DC for the Team.local domain.

I am using my administrator account...for everything...is a member of DomainAdmins group
I am also using the correct password..The Server2003 machine is in the DNS snapin on the old 2000 server. I am done with adprep/at least i think so...but stuck at what i thought was going to be an easy step....any help?
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TVanLanenConnect With a Mentor Author Commented:
alright, turns out i needed to add the admin account into a group policy on the old server, then force the update and reboot...figured it out thanks anyways

delgation privilage grouppolicy if curious
You have done Adprep /forestprep and Adprep /domainprep from the W2003 CD on the 2000 DC?

If the new Windows 2003 server is the ‘R2’ version then you need to run Adprep  from CD2 of the R2 disks on the existing Domain controller. Adprep is in the \CMPNENTS\R2\ folder on CD2
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