A while back in the forums I saw an issue (http://community.divelements.co.uk/CS/forums/13387/ShowPost.aspx) where right clicking in the title bar of a ribbonform doesn't work. When you right click in the title bar where a ribbon tab has drawn it's Editing Context hints, you get the context menu for the ribbon.
The issue that I'm having now, might be related to this. When you double click in the title bar, it should toggle between being maximized and the previous size. However, when you double click in the the area highlighted by a tab's Editing Context, nothing happens.
This isn't a big issue for me, more of an FYI.