Outlook Webmail login failure

Updated Exchange 2003 to SP 1 to get rid of the '..titanium.. ' error.  Now all users who could logon to Outlook Webmail can no longer authenicate.  They can get to the site but log on fails:

"You could not be logged on to Outlook Web Access. Make sure your domain\user name and password are correct, and then try again."

System is SBS 2003 with no service packs (I took over this system from another company).

Need to solve the authentication issue.
Who is Participating?
Jeffrey Kane - TechSoEasyConnect With a Mentor Principal ConsultantCommented:
This is due to the forms-based authentication in OWA:

Did you use "domain\user"  or just "user" to logon?

william_schubertAuthor Commented:
About half the time I have a question like this I find out the answer and immediatly think I should have thought of that.  This time too.

But I didn't.  Jeff did. Put in the domain and it came right up.

Jeffrey Kane - TechSoEasyPrincipal ConsultantCommented:
well, I was just reading the instructions.... :-)

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