I noticed that the "Welcome New Members" banner if floating over the content of the site. I'm not sure if this is by design, but it would really improve the look of the UI if you either a) Put this banner above the content and floated all the other content lower in the page or b) Made this floating banner a fixed width that didn't go edge to edge, and put it as a Ajax notification that made the rest of the page grayed out until this banner is dismissed.