I have a Windows Server 2003 domain. One of the Group Policy Objects appears as a linked item in an OU but all I can see if the Unique ID and that the Link Status is Enabled. There is a red minus icon next to it and its name reads "Inaccessible." The message says "This Group Policy object (GPO) is inaccessible because you do not have the read-level permission on it."
There is a folder in SYSVOL that contains the Unique ID and I can browse into it without any trouble. If I view the complete list of Group Policy Objects I can't find anything that resembles this inaccessible GPO.
If I run Group Policy Results wizard against a user that the Inaccessible policy applies to then I'm able to see the real name of the GPO and see all the settings that are being applied to the user from the GPO.
What may have happened which would cause an administrator to lose almost all access to a GPO and can the access be restored?