Dear Smorton,
your Outlook version?
Maybe you can not enable, because your Outlook Addressbook is not
"activated":
How to "activate" the Outlook Addressbook:
http://www.oit.cmich.edu/quickguides/qg_outlook_addressbooks.asp
How to add contact folders to the Outlook Addressbook:
http://www.slipstick.com/contacts/oloab.htm
--
Oliver Vukovics
Share Outlook without Exchange: Public ShareFolder
Notebook Synchronisation for Outlook: Public SyncTool
http://www.publicshareware.com
> This checkbox is in the Contact Properties dialog under the Outlook
> address
> book tab