I have just upgraded 2 boards and noticed that when you use HTML in The board name it allows it so you can have the name appear as a hyperlink back to your main site.
See
http://www.ndpa.info/mb or www.ebtc/forum you will see the name is actually a hyperlink.
This works but if you go back to admin adn alter something else in the Forum Settings all you get in the box 'Forum Name: box is '<a href='. This is fine now I know it but must be a bug in the coding.