--- loncom/interface/lonindexer.pm	2009/12/02 17:46:46	1.181.6.1
+++ loncom/interface/lonindexer.pm	2009/12/02 18:22:20	1.181.6.2
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Directory Indexer
 #
-# $Id: lonindexer.pm,v 1.181.6.1 2009/12/02 17:46:46 raeburn Exp $
+# $Id: lonindexer.pm,v 1.181.6.2 2009/12/02 18:22:20 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1296,8 +1296,12 @@ sub showpreview {
     my $output='';
     my $embstyle=&Apache::loncommon::fileembstyle($curfext);
     if ($embstyle eq 'ssi') {
-       my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
-                    '.tmp';
+       my $cache = $Apache::lonnet::perlvar{'lonDocRoot'}.$filelink;
+       if ($env{'request.gcicontext'} eq 'buildtest') {
+           $cache .= '.tn'; 
+       } else {
+           $cache .= '.tmp';
+       }
        if ((!$env{'form.updatedisplay'}) &&
                     (-e $cache)) {
           open(FH,$cache);