OK :) I have changed display:none;..........in display:yes;....not sure that must be that but that works :)

<style>
/* Turn off text block under command button icon */
moi\:CommandButton > div {
display:yes;
}
</style>

Another thing here the French translation but how to make the English for be call in Options ?
Possible or not : so 2 versions that i enable or not manually ?