<?php
$myposts = get_posts('posts_per_page=-1&category=9');
if($myposts):
foreach($myposts as $post) :
  setup_postdata($post); ?>

<div class="art-PostContent">
 <h3 class="art-PostHeader"> <?php  the_title(); ?> </h3>
 <?php the_content(); ?>

</div>

<?php endforeach;
else: ?>
<h3>No current posts in this category</h3>
<?php endif; ?>