My comment form doesn't appear anymore, but it used to work fine. I have seen this topic and it doesn't address my problem. I use a file called single-cat-9.php for the single page of the particular category. In that I have:
</div> <div class=”comments-template”> <?php comments_template(); ?> </div>
I have tried deactivating all of my plug-ins, no change.
Here's the page in question.