diff -r f507feede89a -r 09a1c134465b web/wp-admin/load-styles.php
--- a/web/wp-admin/load-styles.php	Wed Dec 19 12:35:13 2012 -0800
+++ b/web/wp-admin/load-styles.php	Wed Dec 19 17:46:52 2012 -0800
@@ -104,7 +104,7 @@
 $compress = ( isset($_GET['c']) && $_GET['c'] );
 $force_gzip = ( $compress && 'gzip' == $_GET['c'] );
 $rtl = ( isset($_GET['dir']) && 'rtl' == $_GET['dir'] );
-$expires_offset = 31536000;
+$expires_offset = 31536000; // 1 year
 $out = '';
 
 $wp_styles = new WP_Styles();
@@ -120,7 +120,7 @@
 	$content = get_file($path) . "\n";
 
 	if ( $rtl && isset($style->extra['rtl']) && $style->extra['rtl'] ) {
-		$rtl_path = is_bool($style->extra['rtl']) ? str_replace( '.css', '-rtl.css', $path ) : ABSPATH . $style->extra['rtl'];
+		$rtl_path = is_bool($style->extra['rtl']) ? str_replace( '.min.css', '-rtl.min.css', $path ) : ABSPATH . $style->extra['rtl'];
 		$content .= get_file($rtl_path) . "\n";
 	}