Index: vud.theme.inc
===================================================================
--- vud.theme.inc	(revision 4913)
+++ vud.theme.inc	(working copy)
@@ -388,7 +388,7 @@
     else {
       $commands = array();
       if (!empty($plugin['widget template'])) {
-        $commands[] = ctools_ajax_command_replace("#widget-$type-$content_id", theme('vud_widget', $content_id, $type, $tag, $widget));
+        $commands[] = ctools_ajax_command_replace(".widget-$type-$content_id", theme('vud_widget', $content_id, $type, $tag, $widget));
       }
 
       if (!empty($plugin['votes template'])) {
Index: widgets/upanddown/widget.tpl.php
===================================================================
--- widgets/upanddown/widget.tpl.php	(revision 4913)
+++ widgets/upanddown/widget.tpl.php	(working copy)
@@ -8,7 +8,7 @@
  * UpAndDown widget theme for Vote Up/Down
  */
 ?>
-<div class="vud-widget vud-widget-upanddown" id="<?php print $id; ?>">
+<div class="vud-widget vud-widget-upanddown <?php print $id; ?>" id="<?php print $id; ?>">
   <div class="up-score clear-block">
     <?php if ($show_links): ?>
       <a href="<?php print $link_up; ?>" rel="nofollow" class="<?php print "$link_class_up $class_up"; ?>" title="<?php print t('Vote up!'); ?>"></a>