title: Magento $this->getChildHtml('topMenu') not displaying the menu
body: <p>I am working on a redevelopment of a Magento site.</p>
  
  <p>I try to display the menu, and i use this in :</p>
  
  <pre><code>&lt;?php echo $this-&gt;getChildHtml('topMenu'); ?&gt;
  </code></pre>
  
  <p>In the page.xml the reference is:</p>
  
  <pre><code>&lt;block type="page/html_header" name="header" as="header"&gt;
  
              &lt;block type="core/text_list" name="top.menu" as="topMenu" translate="label"&gt;
                  &lt;label&gt;Navigation Bar&lt;/label&gt;
              &lt;/block&gt;
  
   &lt;/block&gt;
  </code></pre>
  
  <p>Why the menu is not displayed I don't know..</p>
  
  <p>Regards</p>