Automatic contact population on TO: line


New Email
When I wanted to send an email to someone in my contact list, it used to automatically populate the name as I started to type it in the TO: line in my Hotmail account. Now it no longer populates the name and I have to type in the full email address every time I send an email to anyone. Same is true when I try to Reply. How can I regain the automatic population for contacts I want to send emails to or reply to?