title: Clean urls not working in Drupal 7
body: <p>I just installed and started using Drupal 7, and I followed the instructions to turn on Clean Urls. I clicked "Run the Clean URL test" button, but it failed to return any results. It loads up something and then refreshes the page. </p>
  
  <p>Can anyone shed light on why this is happening and what I can do?</p>