I have Outlook 2003 and all of a sudden whenever I hit the send/receive button a prompt comes up asking for me to enter my network password. I have never had to do this before to access my messages. I enter the password, only for it to happen again the next time I hit the send/rec. button. (The box asking to logon using a Secure Password Authentication SPA is NOT checked under email accts.) After 3 days of this, my email has now stopped sending messages, even after I sign in--I can only receive messages. I called Comcast and they said they can't help me. My computer uses Windows XP, Service Pack 2.
