Help in StarDict (and other GTK apps?)

When I click on the "Help" button in StarDict, nothing happens. Is this a bug, or should I install something else? -- Vincent Lefèvre <vincent@vinc17.org> - Web: <http://www.vinc17.org/> 100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/blog/> Work: CR INRIA - computer arithmetic / Arenaire project (LIP, ENS-Lyon)