Yes, it works ! But i've another strange thing, maybe something easy to solve.
All my website (except blog who is only in FR) is based on the var $pll_current_language
For example to check the language and put the right page (or include), i do :
if(pll_current_language($value) == 'fr') { $include = get_pages( ...... ); }
else { ..... }
But pll_current_language always return a bool(false)
$pll_current_language is no used anymore on Polylang 1.2.3 ?
I'll check further when i'll be at home, i can't do anything at this time :(
Thanks again Chouby !