orderby and order clause broken in query_posts on v.3.0.1

[_rwg]

[03-Nov-2010 19:38:53] WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'menu_order ASC LIMIT 0, 7' at line 1 for query SELECT SQL_CALC_FOUND_ROWS wp_posts.* FROM wp_posts WHERE 1=1 AND wp_posts.post_type = 'page' AND (wp_posts.post_status = 'publish' OR wp_posts.post_status = 'private') ORDER BY ,menu_order ASC LIMIT 0, 7 made by require, require_once, include, query_posts, WP_Query->query, WP_Query->get_posts

Did you try disabling all plugins and switching to the twentyten theme?