I have a Windows 7x64 desktop joined to a Sever 2000 domain with Exchange 5.5. The office uses shared calendars and this one particular user cannot open any of the shared calendars. The error is "Unable to display the folder. The Calendar folder could not be found." I have tried deleting the account from the Exchange server, deleting the profile from Mail, starting in offline mode and exporting the .ost to .pst, deleting the exchange account from Outlook, all to no avail. I have another user in the office using the same setup that can connect to the shared calendars without issue. The strange thing is that the user could connect on Friday then lost the ability when she arrived Monday morning. No updates were installed. I am out of ideas, any help would be appreciated. Oh, and I have checked permissions against all the other users and they are set the same.