My Outlook contents completely disappeared from one day to the next, as if I had not set up an account. Looking at the identities folder (thanks to one of your threads here) I have four identities, three of which were created within three days last month - how that happened I don't know as I had never been in this folder before. One of these is Main Identity. The fourth one was created more than a year ago, though it is named Main Identity [backed up 27 June 2012]. How do I reinstate the right identity (and contents) and get rid of the others safely?