Index: wp-includes/theme-compat/comments-popup.php
===================================================================
--- wp-includes/theme-compat/comments-popup.php	(revision 17063)
+++ wp-includes/theme-compat/comments-popup.php	(working copy)
@@ -53,7 +53,7 @@
 <?php foreach ($comments as $comment) { ?>
 	<li id="comment-<?php comment_ID() ?>">
 	<?php comment_text() ?>
-	<p><cite><?php comment_type(__('Comment'), __('Trackback'), __('Pingback')); ?> <?php printf(__('by %1$s &#8212; %2$s @ <a href="#comment-%3$s">%4$s</a>'), get_comment_author_link(), get_comment_date(), get_comment_ID(), get_comment_time()); ?></cite></p>
+	<p><cite><?php comment_type(); ?> <?php printf(__('by %1$s &#8212; %2$s @ <a href="#comment-%3$s">%4$s</a>'), get_comment_author_link(), get_comment_date(), get_comment_ID(), get_comment_time()); ?></cite></p>
 	</li>
 
 <?php } // end for each comment ?>