"Mike-Sion" wrote in message
...

Mike-Sion: No I did not import the PST. This error may have occured
because I opened a duplicate copy of this PST by error which was
stored on another drive, so there were two exact copies of the same PST
open at the same time. Any thoughts? Regards, Mike

Then you need to follow Gordon's advice and create a new mail profile because
you damaged your existing one by deleteing the PST without removing it from
the profile.
--
Brian Tillman [MVP-Outlook]