Buttons don't work and are all "B"s.
I'm trying out version 1.7.1 of Button Bar on an installation of Vanilla 2.2. When I enable the plugin, all the icons are "B" and none of them work. I think the plugin doesn't know if it should use HTML, BB or Markdown, because no message appears at the bottom of the page (like the one that says you can use simple HTML).
I'm testing this in Firefox.