The last time this happened, I realized it was right after I had done a "critical" update for Office 2011 (that was, perhaps, 2 weeks ago).  Then, today I did another Office 2011 "critical" update.  But, before I did it, I made sure I'd backed up my Address Book and iCal data.  When the update was done I checked both programs.  Data that had been there prior to the update was gone.  It is 100% clear to me that this is a BUG in the Office 2011 update process.  Has anyone else run into this?

Yes, I can recover - but, I shouldn't have to go through the process of removing the "sync" options in preferences, shutting down and restarting Outlook then re-checking the sync options.  Nor should I have to go through a back up prior to an update only to restore Address Book and iCal after the update.

Carl