Index: wp-includes/class-wp-theme.php
===================================================================
--- wp-includes/class-wp-theme.php	(revision 20944)
+++ wp-includes/class-wp-theme.php	(working copy)
@@ -1025,6 +1025,8 @@
 		$path = $this->get_stylesheet_directory();
 		if ( $domainpath = $this->get('DomainPath') )
 			$path .= $domainpath;
+		else
+			$path .= '/languages';
 
 		$this->textdomain_loaded = load_theme_textdomain( $textdomain, $path );
 		return $this->textdomain_loaded;
Index: wp-content/themes/twentyten/style.css
===================================================================
--- wp-content/themes/twentyten/style.css	(revision 20944)
+++ wp-content/themes/twentyten/style.css	(working copy)
@@ -7,6 +7,7 @@
 License: GNU General Public License
 License URI: license.txt
 Tags: black, blue, white, two-columns, fixed-width, custom-header, custom-background, threaded-comments, sticky-post, translation-ready, microformats, rtl-language-support, editor-style, custom-menu
+Text Domain: twentyten
 */
 
 
Index: wp-content/themes/twentyeleven/style.css
===================================================================
--- wp-content/themes/twentyeleven/style.css	(revision 20944)
+++ wp-content/themes/twentyeleven/style.css	(working copy)
@@ -8,6 +8,7 @@
 License: GNU General Public License
 License URI: license.txt
 Tags: dark, light, white, black, gray, one-column, two-columns, left-sidebar, right-sidebar, fixed-width, flexible-width, custom-background, custom-colors, custom-header, custom-menu, editor-style, featured-image-header, featured-images, full-width-template, microformats, post-formats, rtl-language-support, sticky-post, theme-options, translation-ready
+Text Domain: twentyeleven
 */
 
 /* =Reset default browser CSS. Based on work by Eric Meyer: http://meyerweb.com/eric/tools/css/reset/index.html