I posted this in another thread...I have the same problem...
"I doubt this problem has anything to do with any antivirus programs.
I have the same problem and I don't have any anti virus programs installed
yet on my laptop.
The problem is that Windows Mail fails to remember my username and
password.
I've tried to resolve this two ways:
1) by selecting "Remember my credituals" when the Windows Security appears
and prompts me for my username and password. Next time I run Windows Mail
again, it will prompt me for the same information again. It's as if
Windows
Mail never remembered my Username and Password in the first place. Once I
enter the Username and Password the program works fine. It's just annoying
because I like opening a progran and not having to log in at all. Windows
Mail apparently offers this feature but it's not working for me. And
apparently it doesn't work for lots of other users after reading many
threads
is this forum. If you don't believe me, do a search under "username,
password, remember creditituals". There's lot's of threads on this
problem.
2) under the Tools/Account/Properties/Servers tab I select "Remember
Password", then hit Apply, and then exit. Surprisingly if I were to check
this tab again, I will find the Password field blank. That doesn't make
sense. Who erased it? It didn't stick apparently?
This is a brand new laptop I got from Dell with Vista Home installed. It's
got about only 1 hour's time usage on it. I opted not to installed any
antivirus programs when I started. The only program I have installed was
Mozilla Firefox. Nothing else.
I called Dell and after much discussion their answer was "Windows Mail
program has an error in it which doesn't remember usernames or passwords."
That's hard for me to swallow seeing that there specifically is a check
box
which says "Remember Credituals". Essentially they're blaming it on a
glitch
in the software?
Help?? I'm about to give up and install Windows Live Mail like somebody
else recommended. "