I recently had a problem where the entire comments area was missing from all the posts on this blog. When I switched back to the default twentyten theme they reappeared and at first I thought it was a problem with the mystique theme. I switched back to mystique and disabled all of my plugins and the comments came back! A simple process of elimination identified the culprit — The WP یہ Pager Plugin. This plugin isn’t really necessary with the mystique theme, so I have simply removed it. If you encounter the same problem with mystique, check you haven’t got this plugin enabled.