AJAX rating does not work in single forum. In file forum/view.php is not include the libraries for AJAX.

I fix it adding the next lines in view.php:

require_js(array('yui_yahoo', 'yui_event', 'yui_dom', 'yui_connection', 'yui_json'));
require_js($CFG->wwwroot . '/mod/forum/rate_ajax.js');

Thanks