http://seer.entsupport.symantec.com/docs/320697.htm
These instructions will basically enable you to wipe BESR's history of use, including configured jobs. You can start from scratch, and stop those annoying reminders about backup destinations that...
Regarding removing old backup destinations:
http://seer.entsupport.symantec.com/docs/320697.htm
This removes all backup jobs and destinations. I only run two different jobs, so recreating them was not a problem. Rather start from scratch than be ...