Did this start after an upgrade to IE7?

Authentication fails when you use Outlook or Outlook Express to try to log
on to a HTTP-based mail server if you use Internet Explorer version 7.0:
http://support.microsoft.com/?kbid=904942

That said, you will often get error messages using Hotmail that will
eventually clear up by themselves.
--
Bruce Hagen
MS-MVP Outlook Express
~IB-CA~

"rover" wrote in message
...
Unable to poll for new messages on your HTTP server. Account: 'Hotmail',
Server: 'http://services.msn.com/svcs/hotmail/httpmail.asp', Protocol:
HTTPMail, Server Response: 'Authorization Required', Port: 0, Secure(SSL):
No, Error Number: 0x800CCC32