Whenever I go on my Yahoo Mail Account, a message appears saying that I never set-up a password. Yet, I can easily read my incoming mail. I've searched for a place to give my password but can't find it. I see at the bottom of the page an option to sign-out, but how could I sign-out if I never signed-in using a password? As a result, I see no page for composing a new e-mail on my 3GS. What am I forgetting? Thanks.