You need to check the health of your Novell eDirectory® tree both before and after you install ZENworks 7 Desktop Management and extend the directory schema with Desktop Management attributes. The following resources provide the information required to perform the health check:
Directory Health Check Procedures - Cross Platform, TID 3564075, available in the Novell Support Knowledgebase.
Checking the OS and DS Health for Inconsistent ZENworks behavior, TID 10062741 in the Novell Support Knowledgebase.