Find this function in your template-functions.php (in your wp-includes folder):
function comment_text() {
global $comment;
$comment_text = stripslashes($comment->comment_content);
$comment_text = str_replace(‘<trackback />’, ”, $comment_text);
$comment_text = str_replace(‘<pingback />’, ”, $comment_text);
$comment_text = convert_chars($comment_text);
$comment_text = convert_bbcode($comment_text);
$comment_text = convert_gmcode($comment_text);
$comment_text = convert_smilies($comment_text);
$comment_text = make_clickable($comment_text);
$comment_text = balanceTags($comment_text,1);
$comment_text = apply_filters(‘comment_text’, $comment_text);
echo $comment_text;
}
And replace it with:
function comment_text() {
global $comment;
$comment_text = stripslashes($comment->comment_content);
$comment_text = str_replace(‘<trackback />’, ”, $comment_text);
$comment_text = str_replace(‘<pingback />’, ”, $comment_text);
$comment_text = convert_chars($comment_text);
$comment_text = convert_bbcode($comment_text);
$comment_text = convert_gmcode($comment_text);
$comment_text = make_clickable($comment_text);
$comment_text = balanceTags($comment_text,1);
$comment_text = apply_filters(‘comment_text’, $comment_text);
$comment_text = convert_smilies($comment_text);
echo $comment_text;
}