My outgoing email messages just recently started sitting in the Outbox and don't clear.  I get a pop-up screen that asks for my user name and password, and when I input them, the pop-up screen just keeps popping up (I know that my user name and password are correct.) The local cable company that is my internet provider has been unable to find a solution to the problem.  They suggested I call Windows Live Support, which has not been helpful at all, except to suggest I try the community route.