query_posts('cat=-19'); – translation lost

I have one category i do not want to show as i use these posts for some special sliders only. On the english version of the site everything works fine but the german version does not show any posts anymore.

<?php
if (have_posts()) :
query_posts('cat=-19');
while (have_posts()) : the_post();?>

		<div class="post" id="post-<?php the_ID(); ?>">

			<h2><a href="<?php the_permalink() ?>"><?php the_title(); ?></a></h2>
			<div class="the_date"><?php the_date(); ?></div>
			<div class="entry">

				<?php the_content(); ?>
			</div>
		</div>
<?php

endwhile; endif;
wp_reset_query();
 ?>

If i remove the query_posts i get all posts in both languages again.