I'm just wondering if the "Return operational attributes when all user attributes are requested" setting is enable or disabled on the server used for LDAP connectivity when you created your user source.

To check the setting:
* Open Console1
* Highlight the container in which the server mentioned above resides.
* Access the properties for the "LDAP Server - {Server name}" object.
* The setting is under the "General - LDAP Server General" tab. It's a check box, either checked or not.