Welcome to the land of besadmin dude
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Is everything on the BES and BBs running fine? I am not on my machnies now but don't recall ever seeing those jobs. If you are running fine and planning a new/rebuilt box, I would tend to leave well alone. But do ensure you follow the knottyrope Mantra (TM) - backup backup backup!!! Your db is the heart of the BES so ensure you are getting at least one good backup a day before you go much further