? node.module.patch
Index: modules/node/node.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/node/node.module,v
retrieving revision 1.1028
diff -u -p -r1.1028 node.module
--- modules/node/node.module	8 Mar 2009 04:25:04 -0000	1.1028
+++ modules/node/node.module	12 Mar 2009 23:59:45 -0000
@@ -979,7 +979,7 @@ function node_validate($node, $form = ar
   }
 
   if (isset($node->nid) && (node_last_changed($node->nid) > $node->changed)) {
-    form_set_error('changed', t('This content has been modified by another user, changes cannot be saved.'));
+    form_set_error('changed', t('The content on this page has either been modified by another user, or you have already submitted modifications using this form. As a result, your changes cannot be saved.'));
   }
 
   if (user_access('administer nodes')) {