Index: sites/trunk/global.wordpress.org/public_html/wp-content/themes/rosetta/comments.php
===================================================================
--- sites/trunk/global.wordpress.org/public_html/wp-content/themes/rosetta/comments.php	(revision 5955)
+++ sites/trunk/global.wordpress.org/public_html/wp-content/themes/rosetta/comments.php	(working copy)
@@ -14,8 +14,24 @@
 	<?php if ( have_comments() ) : ?>
 		<h2 class="comments-title">
 			<?php
-				printf( _nx( 'One thought on &ldquo;%2$s&rdquo;', '%1$s thoughts on &ldquo;%2$s&rdquo;', get_comments_number(), 'comments title', 'rosetta' ),
-					number_format_i18n( get_comments_number() ), get_the_title() );
+				$comments_number = get_comments_number(); 
+                                if ( 1 == $comments_number ) { 
+                                    /* translators: %s: post title */ 
+                                    printf( _x( 'One thought on &ldquo;%2$s&rdquo;', 'comments title', 'rosetta' ), '<span>' . get_the_title() . '</span>' ); 
+                                } else { 
+                                    printf( 
+                                        /* translators: 1: number of comments, 2: post title */ 
+                                        _nx( 
+                                            '%1$s response on &ldquo;%2$s&rdquo;', 
+                                            '%1$s responses on &ldquo;%2$s&rdquo;', 
+                                            $comments_number, 
+                                            'comments title', 
+                                            'rosetta' 
+                                        ), 
+                                        number_format_i18n( $comments_number ), 
+                                        '<span>' . get_the_title() . '</span>' 
+                                    ); 
+                                } 
 			?>
 		</h2>