Ok that was my browser cache ! Sorry and thank you ;-)
Ok, SOLVED !
I repaired all the database to solve it…. sorry for the disturbance.
I still think WordPress 4.0 messed things, so if you have problems looking like mine, maybe it’s worth it to repair and optimize your database…
Ouch !
Everything crashed, i don’t have access to my admin anymore….
Edit : works again, but i deleted the piece of code. Where exactly should i copy paste this code ?
Edit again : OK i did it, the exact file to modify is called functions-enfold.php , it works perfectly now, thanks :-)