THe first troubleshooting step you should take is to check what address list the user has set to appear first in the address book: Tools | Address Book, then Tools | Options.

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Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
I have the same issue with the same error message. When I try your
troubleshooting suggestion below, the program locks up, errors out and
restarts outlook.
I have updated my office 2003 package with the latest updates from
microsoft. I have also exported all my contacts, deleted them and imported
them back into outlook. This did not help. I get the same error message
even if I have no contacts in outlook.
Thanks in advance for your help,
Frank
> THe first troubleshooting step you should take is to check what address list the user has set to appear first in the address book: Tools | Address Book, then Tools | Options.
>
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> >
> > Many thanks for your help!
Sue Mosher [MVP-Outlook] - 18 Jan 2006 16:57 GMT
Assuming you can see the data fine in the Contacts folder as the original poster could, I doubt that the data is the problem. I would try removing the Outlook Address Book from the profile (Tools | E-mail Accounts) and adding it back in. If that doesn't resolve the problem, then try creating a completely new mail profile.

Signature
Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
>I have the same issue with the same error message. When I try your
> troubleshooting suggestion below, the program locks up, errors out and
[quoted text clipped - 35 lines]
>> >
>> > Many thanks for your help!