Exchange Migrator 2.x
Outlook is looking for source exchange server when trying to open up (doubleclick) a contact.
The contacts and forms cache are still resolving to the source server.
Two ways to work around this issue (use one or the other):
- Export all contacts to a csv file. Delete the contacts via Outlook and import the contacts from the csv file.
- In Outlook XP only, Go to Tools | Options | Other | Advanced Options | Custom Forms | Manage Forms and click Clear Cache.