Email blues...

What the...! Why can't I log in my yahoomail account? I've been away for a week without any Internet access and so this morning when I came back I was so excited to check my inboxes. Shoooock! Yahoomail won't accept my password. I don't remember ever changing it and it has been my password since 2000 when I created the account so I can never be wrong. Has someone hacked into my account and changed the password? Huhu. I need that account...