[TYPO3-dev] content tables not rendered

[Robert John de Stigter]

Hi all,
 
I'm having big trouble with tables on my website. Al that is shown in
the code is
 
<!--  CONTENT ELEMENT, uid:312/table [begin] -->
  <a name="312"></a>
  <!--  Header: [begin] -->
   <div class="csc-header csc-header-n1"><h1
class="csc-firstHeader">maandlasten lineair</h1></div>
  <!--  Header: [end] -->
   
 <!--  CONTENT ELEMENT, uid:312/table [end] -->
 
So the header of the content element is rendered but the table not! 
 
What is causing typo3 to do this?
 
Help,
Robert