Outlook could not access the specified folder location.

After synching calendar to a PDA my user is unable to open his calendar in Outlook 2003. Instead we see this error message: "Unable to display the folder. Microsoft Office Outlook could not access the specified folder location." Repair of Office does not improve the situation. We can see the user calendar on his machine when we sign on to the machine as administrator, then sign on to Outlook as the user. Suggestions?

 

Does the user have administrative rights on the computer?

 

Yes, and I re-checked that he has full control of all files.