Group Policy Errors

[agilbert44]

We are getting the following error on several XP workstations and on Win 2K3 servers:
Event Type: Error
Event Source: Userenv
Event Category: None
Event Id 1085
Description:
The Group Policy client-side extension Scripts failed to execute. Please look for any errors reported earlier by that extension.

I found the following entry in the ZMD-Messages Log on workstation:
DEBUG] [7/7/2008 2:46:05 PM] [] [AssignmentManager] [] [Error code: 2, Assignment service is not supported by the web server.

And the following entry in the Services-Messages Log on the ZEN Server:
[ERROR] [7/7/08 12:00:34 PM] [] [Assignment Web Service] [AssignmentService.GENERAL_EXCEPTION] [The assignment web service encountered the following exception while handling "getEffectiveAssignments" request for 50964b276119eacaa9d835cf57f243d9~94f7d6df5b51d7119 d830002b3af882a: com.novell.zenworks.datamodel.utils.hibernate.Inva lidReferenceException: com.novell.zenworks.datamodel.exceptions.InternalD ataModelException: com.novell.zenworks.datamodel.exceptions.InvalidTo kenException]

Currently running Zen 10.0.3.2...... any ideas or anyone else having similar issues?

Thanks,