I noticed in the demo there were no comment boxes after posts. I checked this because in my GridMarket theme all I get is a very small colored box which, when clicked, takes you to wp-comments-post.php. But since there's no text in the comment (no comment box is visible) the user gets an error.
There is no comment area that I can see. I checked my Discussion settings and they seem to be in order. Anyone else seeing (er, not seeing) this?