You may just have to re-enter it. My tag line showed the html (or whatever) instead of executing it. I retyped it as I wanted it to appear and it now works.
I have an issue with the owner on something in the control panel that he doesn't seem to get, but it's something that once you know about it isn't an issue...... maybe if he gets more question over time on it, he'll understand what I'm talking about.
I notice that as I'm previewing this post, the forum title appears correctly, but after I send the post it does not. On our main page it appears correctly for me.

