Hello, yes I'm french, no the app is localized in English (made by a native english speaker). Localization in the app is made "on the fly", but didn't succeed with your computer (and you saw my debug display, nobody should access to it normally) Could you contact me by mail (my address is in the web site) to know what happened and to correct it... PS: you are the first one to report this error. If MC bugged at launch time, seems coherent that the app does not work at all :( PSS: The "Help" is only online sorry to contradict you but there is a help inside the app (access: Menu item "Help"->"Help") waiting for a feedback... thanks and bye