I have unwanted email addresses in my Outlook auto complete list that I would like to remove. This list is on my I Mac computer using Snow Leopard 10.6.8 with Office Mac 2008 installed. There is no "x" next to the unwanted addresses to remove them. I did not put these addresses on the list. They came from previous contacts from a "Gumtree" website which is where one can buy and sell items.