how to display K2 category description ?

Hi,
can you tell me how to display a K2 category description ?
I set every k2 parameters on "enable" or "show" but when I go to a category page I can see only the elements of this category and never the introduction edited in category description.
Is it a CSS parameter or a config in K2 I can't find ?

Thanks for your help

Hi,
and did you checked in Menu options?
Becuase inside
gk_game\html\com_k2\templates\default\category.php
there is still

<?php if($this->params->get('catDescription') && $this->category->description != '' ): ?>
<p><?php echo $this->category->description; ?></p>