The issue might be caused by the text-transform: capitalize; CSS rule applied to all elements. This comes from the theme’s CSS. I previously asked you to resolve this.

In any case, please insert the following CSS code into the "Custom CSS Code" textarea in the wpForo > Settings > Colors & Styles admin page. 

body, button, input, select, textarea{
        text-transform: none !important;
}

After that, please clear all types of caches and ask the user to check again. 

Please provide the URL of your forum so we can run a test.

La réinitialisation du mot de passe semble ne pas fonctionner ... pas de mail en retour au bout de 5 minutes ...

De mon coté je ne peux pas tester, ne voulant pas changer mon mot de passe ! 😆