HAVE SAME PROBLEM SINCE JANUARY!!  BEFORE WE RESTORE OR BACKUP WE MAKE SURE ALL COMPUTERS ARE ON THE MOST RECENT UPDATE AND WE GET THE MESSAGE UNABLE TO ACCESS COMPANY FILES.  I WAS TOLD IT WAS AN ISSUE ON OUR COMPUTERS, THEN SEEN OTHERS WERE POSTING  THE SAME ISSUE. TECH SUPPORT IS NO HELP AT ALL!  SOMETHING IN THIS VERSION DOES NOT LIKE THE BACKUP OR RESTORE FUNCTION..