Question : Exchange 2007 OWA

Current config:

Exchange 2003 in production, single server
Exchange 2007 mailbox SCC cluster
Exchange 2007 - 2 CAS/HUB servers load balanced
OWA page attempting:  https:///OWA

I created a user from within exchange 2007.  Normally my users log on with \
When I try and log on in this fashion, I get:

Outlook Web Access could not find a mailbox for Mydomain\Myaccount. If the problem continues, contact technical support for your organization and tell them the following: The mailbox may be stored on a Microsoft Exchange 2000 or Microsoft Exchange 2003 server, or the Active Directory user account was created recently and has not yet replicated to the Active Directory site where this Client Access server is hosted. 

When i try and log on with @.local, I can log on successfully.

Any thoughts on what I need to do in order to be able to log on with the \ ?

Answer : Exchange 2007 OWA

With it set to username only (and the correct domain name in the 'Logon domain' input field), does it still allow you to type fhsd\username ?