So installed X.3 and I'm happy with it. Except for...
When I go into the "Sharing" preference pane, and click on "Firewall", Im greeted with a message saying that I'm currently running a third-party firewall, and that in order to access the Mac OS X firewall, I have to disable the third-party firewall. (not word for word stated like that, but you get the idea...)
Here's the deal... I don't have any third-party firewalls running. Brickhouse, etc.... NADA!!! I did an install over 10.2.8. This has never been an issue before.