MonitorWare Knowledge Base

This is just a little thing. One of my co-workers brings in his home laptop to use on our systems. He is running Outlook 2003 and is having a problem viewing his contacts. He has two options under his drop-down contacts list "Personal Conacts" and "Work Contacts". Only people on his Work Contacts are there, but when he clicks on Address Book, both are there. I feel like the answer is right in front of me, and I'm just overlooking it. Anyone have any suggestions?
Thanks