Lots of valuable information in that file I'd like to access. I was able to create a new Outlook file in safe mode so I guess the program is OK. It was suggested to me recently the cause may have been due to me having Microsoft Service Pack 1 at the time. I had not updated to Service Pak 2 (which I now believe has been updated to Service Pak 3). Has anyone had experience with this and, if so, do you think there's a chance that if I update my Service Pak that I might still have a chance of recovering the data I had in my original Outlook file?