Classified and Answer Tabs

Can you please help me when i click classified or answer tab i found long unintelligible text Iam pasting few lines for your help please.

<?php
// $Id: index.php,v 1.91 2006/12/12 09:32:18 unconed Exp $
/**
* @file
* The PHP page that serves all page requests on a Drupal installation.
*
* The routines here dispatch control to the appropriate handler, which then
* prints the appropriate page.
*/
Yesterday I asked one question since then Iam facing this problem.
Thanks for your guidance.