--- loncom/xml/lonxml.pm	2006/05/15 22:30:10	1.412
+++ loncom/xml/lonxml.pm	2006/07/11 09:44:04	1.415
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # XML Parser Module 
 #
-# $Id: lonxml.pm,v 1.412 2006/05/15 22:30:10 albertel Exp $
+# $Id: lonxml.pm,v 1.415 2006/07/11 09:44:04 foxr Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -366,13 +366,14 @@ sub latex_special_symbols {
 	return $string;
     }
     if ($where eq 'header') {
-	$string =~ s/(\\|_|\^)/ /g;
+	$string =~ s/\\/\$\\backslash\$/g; # \  -> $\backslash$ per LaTex line by line pg  10.
 	$string =~ s/(\$|%|\{|\})/\\$1/g;
-	$string =~ s/_/ /g;
 	$string=&Apache::lonprintout::character_chart($string);
 	# any & or # leftover should be safe to just escape
         $string=~s/([^\\])\&/$1\\\&/g;
         $string=~s/([^\\])\#/$1\\\#/g;
+	$string =~ s/_/\\_/g;              # _ -> \_
+	$string =~ s/\^/\\\^{}/g;          # ^ -> \^{} 
     } else {
 	$string=~s/\\/\\ensuremath{\\backslash}/g;
 	$string=~s/\\\%|\%/\\\%/g;
@@ -1539,7 +1540,8 @@ sub error {
 	    #public or browsers
 	    $errormsg=&mt("An error occured while processing this resource. The author has been notified.");
 	}
-	my $msg = join('<br />',@_);
+	my $host=$Apache::lonnet::perlvar{'lonHostID'};
+	my $msg = join('<br />',(@_,"The occured on host <tt>$host</tt>"));
 	#notify author
 	&Apache::lonmsg::author_res_msg($env{'request.filename'},$msg);
 	#notify course