License service problems

We have a SBS 2003 server with 45 per server licenses. We also are trying to
configure a Windows NT 4 server to be a file server. But everytime users
logon script maps to the NT server, the event log records this error:

Event Type: Warning
Event Source: LicenseService
Event Category: None
Event ID: 213
Date: 10/15/2004
Time: 8:12:56 AM
User: N/A
Computer: *the name of our NT server*
Description:
Replication of license information failed because the License Logging
Service on server \\*the name of our PDC* could not be contacted.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 22 00 00 c0 “..?