Question : Second login required when starting Outlook?

Something stranged has happend with Outllook.  I recenetly upgraded to Outlook2007, and that seems to be when this started.  When I reboot my computer and log onto the LAN domain (via MS Active Directory) and then attempt to start Outlook (accessing the domain Exchnage2003 server) I am prompted for another logon request.  It is like my initial credentials are not being accepted by the Exchange server.

Does anyone have any ideas on how I correct this??

Thanks!

Answer : Second login required when starting Outlook?

Yes, I am using the MS Windows firewall.  However, somewhere along the line this magically correceted itself.  I love Microsoft...

Thanks for the solution ideas...