Everytime I try to send or recieve mail (i press the send/recieve mail button on the top of outlook), it sends things, but when it tries to recieve it, a box pops up that is titled "enter network password". It has the server name: plus.pop.mail.yahoo.com (which u cant change) and my username, and my password. I press ok, but the window pops up again....over and over. I cant recieve anything!!! Any help?