Index: wp-admin/includes/theme.php
===================================================================
--- wp-admin/includes/theme.php	(revision 12031)
+++ wp-admin/includes/theme.php	(working copy)
@@ -131,7 +131,7 @@
 
 	if ( is_array( $templates ) ) {
 		foreach ( $templates as $template ) {
-			$template_data = implode( '', file( WP_CONTENT_DIR.$template ));
+			$template_data = implode( '', file( $template ) );
 
 			$name = '';
 			if ( preg_match( '|Template Name:(.*)$|mi', $template_data, $name ) )