email contact list

When I double click on the To icon it brings up all of my contacts. Actually it only shows 5 off them. When select the 5th one it will show the next one in the list. Is there a way that it can show all of them so I can scroll through the list? Basically I want to be able to have the contact list function the same as it did in hotmail. Is it possible for me to scroll through all of my contacts at once? Or can I only go through them one name at a time?