I have installed the social networking add-in (it shows up in the installation list) for 2010 Office but it never is activated when I run Outlook. The "People" tab in View isn't there. I've made sure there are no firewall issues. I'm running Windows 7 64 bit and Office 64 bit. I made sure to download the 64 bit version of the add-in. I've looked and tried other suggestions and nothing works. Suggestions?