Change the default address book

Video Link on how to "Change the default address book"

Video Tutorial

Step by Step Guide:

1. On the Standard toolbar, click Address Book

Tip You can also open the Address Book by clicking Address Book on the Tools menu.

2. Click Tools, and then click Options.

Note If you open the Address Book from an open message, the Tools menu is not available. The Address Book must be opened by either method described in Step 1.

3. In the Show this address list first box, click the name of the address book that you want.
4. Click OK, and then close the Address Book.