I have 1 server, W2K Advvanced with E2K Enterprise Edition. It's on a 10/100 switch with a W98 client. I installed Outlook 2002. When I launch Outlook, it comes back saying "Your MS Exchange Server is unavailable." I then select "Retry" and it pauses at the splash screen then comes up with Outlook. Then I get a box appear that says it's request data from an Exchange Server.... It loads with all the email and such. But I remeber way back when on 5.5 this didn't happen, open Outlook and voila all workie. There is a firewall on the switch...but the traffic should be just on the switch, nothing going over the Internet. The firewall is configured to all any Outbound traffic to open a port and keep it open till the Fin command is sent. Ideas?