That setting is in the properties of the Outlook Address Book. If you've got
OL2003, take a look here: Tools menu > Email accounts > View/Change existing
address books or directories > Click Next > Highlight Outlook Address Book >
Click Change. The options are either First Name or File As
> When I go to address a message, the contacts in the address window are
> sorted by first name. I tried to go to Tools>options >contact options to
> no
> avail. All names continue to be by first name. Can anyone help??