Index: wp-includes/media.php
===================================================================
--- wp-includes/media.php	(revision 7580)
+++ wp-includes/media.php	(working copy)
@@ -352,7 +352,7 @@
 
 	$id = intval($id);
 	$orderby = addslashes($orderby);
-	$attachments = get_children("post_parent=$id&post_type=attachment&post_mime_type=image&orderby=\"{$orderby}\"");
+	$attachments = get_children("post_parent=$id&post_type=attachment&post_mime_type=image&orderby=\"{$orderby}\"&order=");
 
 	if ( empty($attachments) )
 		return '';