We upgraded our exchange server from 5.5 to 2003 in May. I just upgraded one of our users from Outlook 2000 to Outlook 2002(XP). We have some 2000 and some 2002 Outlook users in the environment. Everyone else is running with no problem. The user I upgraded gets the error "Task 'Microsoft Exchange Server' reported error (0x8004010F) : 'The operation failed. An object could not be found.'". I have seen the other postings on this site regarding this error, but they all seem to apply to a problem with the Exchange server and I cannot understand why this would only happen to one user if that were the case. Any suggestions would be helpful. Is this possibly some kind of permissions issue?