--- loncom/xml/run.pm	2005/11/15 20:50:26	1.54
+++ loncom/xml/run.pm	2006/01/11 08:52:58	1.55
@@ -1,6 +1,6 @@
 package Apache::run;
 #
-# $Id: run.pm,v 1.54 2005/11/15 20:50:26 albertel Exp $
+# $Id: run.pm,v 1.55 2006/01/11 08:52:58 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -50,6 +50,7 @@ while (!$_LONCAPA_INTERNAL_oldexpression
 		 my $__LC__prefix;
 		 my $__LC__result;
 		 while (1) {
+		     if ($__LC__a =~ m-^&(theta|i|pi|rho)-) { last; }
 		     { 
 			 use strict;
 			 no strict "vars";