lostdeviantFYI - qTranslate breaks Buddypress URLs. I left a message 6 days ago on the qtranslate support forum, but I guess the developer has been too busy.
qtranslate works fine on all blog pages like normal, but if it is enabled/active all the Buddypress specific pages give the Wordpress 404 "page not found".
I did my testing on the current version of qtranslate and Buddypress 1.1.
