--- loncom/xml/lonxml.pm	2001/08/20 23:31:08	1.121
+++ loncom/xml/lonxml.pm	2001/08/21 17:21:50	1.122
@@ -738,7 +738,7 @@ sub init_safespace {
 # $safeeval->deny(":base_orig");
   $safeinit .= ';$external::target="'.$target.'";';
   my $rndseed;
-  if (exists(&Apache::lonhomework::whichuser)) {
+  if (defined(&Apache::lonhomework::whichuser)) {
     my ($symb,$courseid,$domain,$name) = &Apache::lonhomework::whichuser();
     $rndseed=&Apache::lonnet::rndseed($symb,$courseid,$domain,$name);
   } else {