Funny thing is, if the second block goes on top of the sidebar, it works... But that's not its proper place ofcourse.
I'll post the full sidebar here, maybe some php-pro can see where it's going wrong here (meanwhile reading "multiple loops", esmi):
<div id="mond">
<?php if ( is_single() || is_page() || is_paged() || is_search() || is_archive() || is_404() ) { ?>
<div class="dfg">
<p class="gfg"><strong>Brekend</strong></p>
<?php query_posts("showposts=4&category_name=decay"); $i = 1; ?>
<?php while (have_posts()) : the_post(); ?>
<div class="gdrg">
<?php $values = get_post_custom_values("Image");
if (isset($values[0])) { ?>
<a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title(); ?>">
<img src="<?php echo bloginfo('template_url'); ?>/scripts/timthumb.php?src=/<?php
$values = get_post_custom_values("Image"); echo $values[0]; ?>&w=106&h=65&zc=1&q=100"
alt="<?php the_title(); ?>" class="left" width="99px" height="62px" /></a>
<?php } ?>
<div class="info"><a href="<?php the_permalink() ?>" rel="bookmark" class="title"><strong><?php the_title(); ?></strong></a>
<div class="una">[<?php the_time('j M Y') ?> | <?php comments_popup_link('0 reacties', '1 reactie', '% reacties');?> | <?php if(function_exists('the_views')) { the_views(); } ?>]</div>
</div>
</div>
<?php endwhile; ?>
</div>
<?php } ?>
<div id="tur">
<script type="text/javascript"><!--
google_ad_client = "pub-0010673412010";
/* 300x250, gemaakt 8-6-09 */
google_ad_slot = "3614536814";
google_ad_width = 300;
google_ad_height = 250;
//-->
</script>
<script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>
</div>
<div id="sdfdsf">
<?php include (TEMPLATEPATH . '/searchform.php'); ?>
<?php /* Widgetized sidebar, if you have the plugin installed. */ if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar(1) ) : ?>
<?php endif; ?>
</div>
<div id="sdfsd">
<?php /* Widgetized sidebar, if you have the plugin installed. */ if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar(4) ) : ?>
<?php endif; ?>
</div>
<div id="dsffdss">
<?php /* Widgetized sidebar, if you have the plugin installed. */ if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar(3) ) : ?>
<?php endif; ?>
</div>
<div id="dqsf">
<h3>match</h3>
<?php query_posts('cat=4&showposts=5'); ?>
<ul>
<?php while (have_posts()) : the_post(); ?>
<li><a href="<?php the_permalink() ?>"><strong><?php the_title(); ?></strong></a></li>
<?php endwhile;?>
</ul>
<h3>quick</h3>
<?php query_posts('cat=3&showposts=5'); ?>
<ul>
<?php while (have_posts()) : the_post(); ?>
<li><a href="<?php the_permalink() ?>"><strong><?php the_title(); ?></strong></a></li>
<?php endwhile;?>
</ul>
</div>
<?php if ( is_home() || is_archive() || is_404() ) { ?>
<div id="dsfsdf">
<script type="text/javascript"><!--
google_ad_client = "pub-006913815847188";
/* 300x250, created 6-2-09 (o) */
google_ad_slot = "6514371817";
google_ad_width = 300;
google_ad_height = 250;
//-->
</script>
<script type="text/javascript"
src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script>
</div>
<?php } elseif ( is_single() ){ ?>
something else
<?php } ?>
</div>