Clicking on the link from the Project page menu for either the User or Developer forum shows this message. This also occurs for the project matrix.
http://www.jboss.org/projects

"Oops, the page can't be found

Sorry, the page you requested can't be found. You can go back and try again, or start again at home."

The error message is for this User page
http://www.jboss.org/index.html?module=bb&op=viewforum&f=310
This is the Developer forum page
http://www.jboss.org/index.html?module=bb&op=viewforum&f=311