Index: views/handlers/signup_handler_field_signup_node_link.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/signup/views/handlers/signup_handler_field_signup_node_link.inc,v
retrieving revision 1.1.2.1
diff -u -p -r1.1.2.1 signup_handler_field_signup_node_link.inc
--- views/handlers/signup_handler_field_signup_node_link.inc	4 Mar 2009 18:58:31 -0000	1.1.2.1
+++ views/handlers/signup_handler_field_signup_node_link.inc	20 Sep 2009 16:55:21 -0000
@@ -39,7 +40,7 @@ class signup_handler_field_signup_node_l
     $node->nid = $values->{$this->aliases['nid']};
     $node->uid = $values->{$this->aliases['uid']};
     $node->signup_status = $values->{$this->aliases['signup_status']};
-    $node->signup = !empty($node->signup_status);
+    $node->signup = isset($values->{$this->aliases['signup_status']});
 
     // Ensure the current user can access this link for the given node.
     if (!$this->check_access($node, $tab)) {