Now the outlook web access web parts don't work.

I have the My Inbox web part on my My Site. Whenever I loaded the
page, I would get prompted for a user name and password. Now, instead
of getting pinged for a log on when the page opens, I get the Outlook
Web Access log in screen in my web part and nothing I enter into it
seems to make a difference. The log in screen just deletes what I
enter and starts over. I don't even get a bad password or anything.

Furthermore, the Outlook Web Access page will accept my user name and
password outsite of Sharepoint, i.e. if I just call the URL in a
browser, get the OWALogon and enter my info.

Finally, our mail domain is different from out Exhange domain. I have
a seperate username and password for the mail domain.

Where's the instructions?