I have just installed Microsoft Outlook 2007 on a Windows Server 2008 X64 machine. However, I can't seem to connect to my exchange 2000 server mailbox. When I try to add the exchange server and mailbox name administrator it prompts for username and password. I type the username and password and it keeps saying it's not correct when it is. Everything works fine on Outlook 2000. The Server 2008 machine is on the same domain as the exchange server and can ping it without any problems. Any assistance on this is appreciated.