Hi,

Try removing and re-adding the Outlook Address Book and then try to change
the settings.

Tools-> Email Accounts-> View or change existing Directories and Address
Book-> Remove Outlook Address Book and re-add by clicking on Add-> Other
Additional Address Books->Outlook Address Book. Click Finish.
Close and restart Outlook.
Then go to Tools->Email Accounts-> View or change existing Directories and
Address Book-> Change-> and change the fields for 'Show names by'.
Close and restart Outlook.

Mittu

Maybe this will help:

In OL go to Tools, E-Mail accounts, and enter a dot in View or Change . . .
Highlight your OL Address Book (if not already highlighted) and select
Change.  In the window that opens you can switch your setting for Show Names
By.