On the home page of my wiki, when i click on the link "ikiwiki", i get the english file instead of the french file.  
At the bottom of this page, there is the "Links" line:  
Links: index index.fr templates templates.fr  
When i click on "templates.fr", i get the po.file instead of html.  
   
    Sorry for the noise! I set "po_master_language" to fr and all was ok. [[done]].