title: Class 'DOMDocument' not found
body: <p>I've found an error on a page in my Magento application; it always show this message error when I visit it:</p>
  
  <blockquote>
    <p>Fatal error: Class 'DOMDocument' not found in /home/.../lib/Zend/Feed/Abstract.php on line 95</p>
  </blockquote>
  
  <p>Can you give me a solution? I'm using magento 1.4.1.1.</p>