title: Captcha not showing up Codeigniter & Tank_Auth
body: <p>I use Tank_Auth for registration in my codeigniter app.
  I enabled Captcha Registration but it is not showing.</p>
  
  <p>I chmodded my folder to 777 and the path is right so it should show up.</p>
  
  <p>My Tank_auth.php config file:</p>
  
  <pre><code>$config['captcha_path'] = './application/captcha/';
  $config['captcha_fonts_path'] = './application/captcha/fonts/5.ttf';
  $config['captcha_width'] = 200;
  $config['captcha_height'] = 50;
  $config['captcha_font_size'] = 14;
  $config['captcha_grid'] = FALSE;
  $config['captcha_expire'] = 180;
  $config['captcha_case_sensitive'] = TRUE;
  </code></pre>
  
  <p>I have an .htacces file, so maybe that could be the problem.</p>
  
  <p>My captcha folder is stored at <code>httpdocs/application/captcha</code>
  my fonts are at <code>httpdocs/application/captcha/fonts/</code></p>
  
  <p>It show's me this:
  <img src="https://i.stack.imgur.com/VBZz1.png" alt="registration"></p>