Today Microsoft released this critical update: http://www.microsoft.com/technet/security/Bulletin/MS09-044.mspx Following installation of this update I am no longer able to establish a Remote Desktop Connection unless I first disable the ESS firewall. Here's the scenario: 1. I connect successfully to the remote server via VPN. 2. The remote server displays a complete list of available remote desktops. 3. When I attempt to establish a connection to any of these desktops, I receive a "Client could not establish a connection to the remote computer" error message. If I disable the ESS firewall between Steps 2 and 3, I can connect to the remote computer successfully. The ESS logs show no entries for today other than the usual signature updates.