Index: wp-content/themes/twentyten/footer.php
===================================================================
--- wp-content/themes/twentyten/footer.php	(revision 13759)
+++ wp-content/themes/twentyten/footer.php	(working copy)
@@ -20,5 +20,7 @@
 
 <?php wp_footer(); ?>
 
+<?php if ( is_singular() ) wp_print_scripts( 'comment-reply' ); ?>
+
 </body>
 </html>
Index: wp-content/themes/twentyten/header.php
===================================================================
--- wp-content/themes/twentyten/header.php	(revision 13759)
+++ wp-content/themes/twentyten/header.php	(working copy)
@@ -20,7 +20,6 @@
 	<link rel="profile" href="http://gmpg.org/xfn/11" />
 	<link rel="stylesheet" type="text/css" media="all" href="<?php bloginfo( 'stylesheet_url' ); ?>" />
 	<link rel="stylesheet" type="text/css" media="print" href="<?php bloginfo( 'stylesheet_directory' ); ?>/print.css" />
-	<?php if ( is_singular() ) wp_enqueue_script( 'comment-reply' ); ?>
 	<link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>" />
 	<?php wp_head(); ?>
 </head>