Vista - Error message when sending mail

I have Windows Vista and Windows Mail. When I am sending a mail out, I get
an error message about checking my account info, and I have done that. The
error messages continues popping up and the mail sometimes are staying in
the outbox for some time, before going out.
I apprechiate some tips about how to get rid of this error message.
Paviliona

"Paviliona" <unni.gjolga@xxxxxx> wrote in message
news:%23MxFWd$bIHA.3696@xxxxxxFor problems like that, we often need the whole error message,even if
it's not in English, not just a summary of it. You can add a translation
into English.

When mail is staying in your Outbox for a long time, can you move the
oldest message there to the drafts folder or delete it?

What if any antivirus programs do you have? Some of them tend to
cause assorted problems in Windows Mail, although seldom immediately.