ERROR GPO

Alguien me puede indicar que puede estar pasando con este
error????????????

Event Type: Error
Event Source: Userenv
Event Category: None
Event ID: 1058
Date: 4/25/2007
Time: 9:07:40 AM
User: NT AUTHORITY\SYSTEM
Computer: SERVIDOR2K3
Description:
Windows cannot access the file gpt.ini for GPO
CN={31B2F340-016D-11D2-945F-00C04FB984F9},CN=Policies,CN=System,DC=mtto,DC=lacastellaza,DC=co.
The file must be present at the location
<\\mtto.lacastellaza.co\sysvol\mtto.lacastellaza.co\Policies\{31B2F340-016D-11D2-945F-00C04FB984F9}\gpt.ini>.
(The format of the specified network name is invalid. ). Group Policy
processing aborted.

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

Es repetitivo.. me llena el LOG de eventos...