GPO error message Kerberos

I've made a bunch of different policys a few weeks back.  They were working fine for a while, however I saw something on a user's PC today that would indicate they've stopped working.  I've checked on the event view on my Terminal Server (where the policies are applied).  I found this.

Event Type:      Error
Event Source:      Kerberos
Event Category:      None
Event ID:      3
Date:            1/31/2008
Time:            3:27:18 PM
User:            N/A
Computer:      SERVER
Description:
A Kerberos Error Message was received:
         on logon session
 Client Time:
 Server Time: 20:27:18.0000 1/31/2008 Z
 Error Code: 0x7  KDC_ERR_S_PRINCIPAL_UNKNOWN
 Extended Error:
 Client Realm:
 Client Name:
 Server Realm: DOMAIN.COM
 Server Name: Server.domain.com
 Target Name: Server.domain.com@DOMAIN.COM
 Error Text:
 File: 9
 Line: ae0
 Error Data is in record data.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.


Has anyone seen this before?  ANything I can check out?
LVL 1
jsctechyAsked:
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