the Windows live ID sign in assistant is enabled on my PC's services page but I don't get the page at boot up. Do you
1) have the password stored on the PC? ( I do) and
2) Do you delete cookies regularly? (I don't delete cookies for stored password sites )
But then I don't use messenger only hotmail. I think but can't be sure that the messenger icon appeared in the task bar hidden icon area and I right clicked on it and told it to disappear and it did, but it was a while ago now.