I'm currently using MOSS 2007 with Outlook 2007. I created a Contact List within Sharepoint and copied my contacts into the list, I then linked the list to my Outlook, but when I do this Sharepoint creates 3, 4 or even 5 duplicates of every entry and while synchronizing it slows down my Outlook heavily. Any ideas to what might be causing the duplicate contacts in the list and how to prevent this from happening again?