--- loncom/interface/lonprintout.pm	2013/08/08 15:40:59	1.627.2.7
+++ loncom/interface/lonprintout.pm	2013/08/28 14:31:54	1.627.2.8
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Printout
 #
-# $Id: lonprintout.pm,v 1.627.2.7 2013/08/08 15:40:59 raeburn Exp $
+# $Id: lonprintout.pm,v 1.627.2.8 2013/08/28 14:31:54 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1231,6 +1231,7 @@ sub is_code_valid {
     my ($code_type, $code_length) = ('letter', 6);	# defaults.
     my @lines = &Apache::grades::get_scantronformat_file();
     foreach my $line (@lines) {
+        next if (($line =~ /^\#/) || ($line eq ''));
 	my ($name, $type, $length) = (split(/:/, $line))[0,2,4];
 	if($name eq $code_option) {
 	    $code_length = $length;