Doesn't make sense to me.

How to prevent overloading on the first domain controller during domain upgrade
http://support.microsoft.com/?id=298713

How can I configure Windows NT 4.0 emulation on my Windows Server 2003 or Windows 2000 Service Pack 2 (SP2) domain controllers (DCs)?
http://www.winnetmag.com/Article/ArticleID/42034/42034.html

Think you need to do some in depth NSLOOKUP work and/or some sniffing of the network. Also NLTEST may help in diagnosing this problem.

Something is preventing you from talking to the AD which needs to be corrected before any scripts are going to run on the AD for you.