--- loncom/homework/structuretags.pm	2006/02/10 23:44:53	1.333
+++ loncom/homework/structuretags.pm	2006/02/11 00:03:07	1.334
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA 
 # definition of tags that give a structure to a document
 #
-# $Id: structuretags.pm,v 1.333 2006/02/10 23:44:53 albertel Exp $
+# $Id: structuretags.pm,v 1.334 2006/02/11 00:03:07 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -622,9 +622,12 @@ sub start_problem {
 	    $form_tag_start.='<input type="hidden" name="rndseed" value="'.
 		$rndseed.'" />'.
 		    '<input type="submit" name="resetdata"
-                             value="'.&mt('New Problem Variation').'" />'.
+                             value="'.&mt('New Problem Variation').'" />';
+	    if (exists($env{'form.username'})) {
+		$form_tag_start.=
 		    '<input type="hidden" name="username"
                              value="'.$env{'form.username'}.'" />';
+	    }
 	    if ($env{'request.role.adv'}) {
 		$form_tag_start.=
 		    ' <label><input type="checkbox" name="showallfoils" ';