Urgent! Pls Help!! How can I remove the list of contacts which pop up automatically?

When I use hotmail to create a new message, whenever I click my mouse in the bar where (the sign of the mouse, a stroke blinking) to insert the directions of my contacts in sending them an e-mail, there's a list of directions pop up automatically without I actually click on the "TO" (in doing so, the list will show up) how can I make them disappear? I don't want anyone to see the list of these directions.