Please, call me Gary. We're pretty informal here. :-)
Joyce, I looked around but did not see a detailed problem statement from
you. This thread was started by someone else ("CoCojax"), so I can't be
sure you are experiencing the exact same symptoms unless you tell me so.

Assuming the problem is that Windows Mail repeatedly asks for you to
enter the username and password, it sounds like you've done pretty much
everything I would have suggested. To reiterate:
1. Use the special removal utilities for McAfee and Norton antivirus.
2. Install Avast (or AVG) antivirus using the custom method which doesn't
install the mail checking module.
3. Deleted that mail account, restart Windows Mail, recreate the account.

If no improvement, about the only thing left to do is to upgrade to Windows
Live Mail: http://download.live.com/wlmail

--
Gary VanderMolen, MS-MVP (Mail)


"Joyce" <Joyce@discussions.microsoft.com> wrote in message news:AC97E062-2EB1-4D8D-B174-DD6EEB81DC33@microsoft.com...
> Dear Mr. VanderMolen: I have done all of the various suggestions including
> recreating an email account, checking and unchecking boxes for
> authentication. Also, I deleted any traces of McAfee and Norton and
> installed the security program you recommended (avast). Any other ideas?
> Thanks. Joyce
>
>
> "Gary VanderMolen" wrote:
>
>> Go to Tools, Accounts, select that mail account, Properties, Servers.
>> Make sure the box for "Log on using Secure Password Authentication."
>> is unchecked.
>>
>> If it was already unchecked, which antivirus are you running?
>> Some of them are not fully compatible with Windows Mail.
>>
>> --
>> Gary VanderMolen, MS-MVP (Mail)
>>
>>
>> "CoCojax" <CoCojax@discussions.microsoft.com> wrote in message news:0D766ED9-FBAD-46AC-9D24-79FD2F614119@microsoft.com...
>> >
>> > I am having the same problem, mine started yesterday evening when I got home
>> > after a week of vacation...
>> > Keeps requesting me to sign in and when I do I receive this error message..
>> >
>> > Account: 'Windows Mail', Server: 'pop.broadband.rogers.com', Protocol:
>> > POP3, Server Response: '-ERR popgate argument(s) missing.', Port: 110,
>> > Secure(SSL): No, Server Error: 0x800CCC90, Error Number: 0x800CCC91
>> >
>> > and then a different message...
>> >
>> > Account: 'Windows Mail', Server: 'pop.broadband.rogers.com', Protocol:
>> > POP3, Server Response: '-ERR [AUTH] Error logging in. Please visit
>> > http://mail.yahoo.com', Port: 110, Secure(SSL): No, Server Error: 0x800CCC90,
>> > Error Number: 0x800CCC92
>> >
>> > Seems like a lot of users are having similar problems so I am confused as to
>> > why Windows has not come up with an answer...I have just completed my
>> > updates...