I'm also using the "inove" theme. I'm having the same problem, however, mine didn't appear until I upgraded to WP2.8 today.
I noticed that my comment links are wrong
when it should be:
It's adding that "comment-page-1" somewhere in wp-comments-post.php where the form is being submitted to.
I've found it's appending it in the "get_comment_link()" function but that is as far as I've gotten so far.
The comment is posted but it keeps directing me to a 404 because comment-page-1 or x doesn't exist.