Recently I had an issue with Backup Exec for Windows Server version 9.1 (I've also seen it in version 10) that would give an "A required privilege is not held by the client". when you try to edit a job.

After a long and exhaustive search I finally dug up these two links buried deep in the Symantec Support site and thus decided to include them here.

I've included here the two most important links for this issue:

http://seer.entsupport.symantec.com/docs/254239.htm

http://www.experts-exchange.com/Storage/Backup_Restore/Backup_Exec/Q_23034807.html