what email client are you using? Take a look at the following:
Outlook 2002 and 2003
From the Tools menu, select Address Book... . The Address Book will open in a new window.
In the new Address Book window, from the Tools menu, select Options... .
Under "Show this address list first:", use the scroll-down menu to select the appropriate listing (i.e., Personal Address Book, Global Address Book, or Outlook Address Book).
To save the changes, click the Apply button.
To exit, click OK.
Outlook 98 and 2000
From the Tools menu, select Services... , then click the Addressing tab.
Under "Show this address list first:", use the scroll-down menu to select the appropriate listing (i.e., Personal Address Book, Global Address Book, or Outlook Address Book).
To save the changes, click the Apply button.
To exit, click OK.
Outlook 97 and Exchange
From the Tools menu, select Options, then click the Addressing tab.
Under "Show this address list first:", use the scroll-down menu to select the appropriate listing (i.e., Personal Address Book or Global Address Book).
To save the changes, click the Apply button.
To exit, click OK.