--- loncom/xml/lonxml.pm	2004/07/12 16:25:51	1.328
+++ loncom/xml/lonxml.pm	2004/07/13 18:13:46	1.329
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # XML Parser Module 
 #
-# $Id: lonxml.pm,v 1.328 2004/07/12 16:25:51 albertel Exp $
+# $Id: lonxml.pm,v 1.329 2004/07/13 18:13:46 sakharuk Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -389,9 +389,10 @@ sub latex_special_symbols {
     } else {
 	$string=~s/\\/\\ensuremath{\\backslash}/g;
 	$string=~s/([^\\]|^)\%/$1\\\%/g;
-	$string=~s/\b_{2,}\b/ \\makebox\[1 cm\]\[b\]{\\hrulefill}/g;
-	$string=~s/([^\\]|^)(\$|_)/$1\\$2/g;
+	$string=~s/([^\\]|^)\$/$1\\\$/g;
+	$string=~s/([^\\])\_/$1\\_/g;
 	$string=~s/\$\$/\$\\\$/g;
+	$string=~s/\_\_/\_\\\_/g;
 	$string=~s/\#\#/\#\\\#/g;
         $string=~s/([^\\]|^)(\~|\^)/$1\\$2\\strut /g;
 	$string=~s/(>|<)/\\ensuremath\{$1\}/g; #more or less