Wiondows mail suddenly requiring a password

Give the following links a spin:

Vista - Windows Mail asking for username /password

http://www.vistax64.com/vista-mail/157995-windows-mail-...


windows mail suddenly wants me to login, then won't accept my info

http://www.vistaheads.com/forums/microsoft-public-windo...


Outlook express [suddenly prompting for username and password]

http://www.windowsbbs.com/microsoft-mail-outlook-outloo...


Save password setting not retained in Outlook or Outlook Express

http://support.microsoft.com/kb/290684


later,G