--- loncom/configuration/Checksumming.pm	2013/02/02 15:20:02	1.2
+++ loncom/configuration/Checksumming.pm	2013/02/06 13:47:47	1.4
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Checksum installed LON-CAPA modules and some configuration files
 #
-# $Id: Checksumming.pm,v 1.2 2013/02/02 15:20:02 raeburn Exp $
+# $Id: Checksumming.pm,v 1.4 2013/02/06 13:47:47 raeburn Exp $
 #
 # The LearningOnline Network with CAPA
 #
@@ -125,7 +125,7 @@ sub get_checksums {
 sub compare_checksums {
     my ($target,$lonhost,$version,$serversums,$serverversions) = @_;
     my ($message,$numchg,$linefeed);
-    if ($target = 'web') {
+    if ($target eq 'web') {
         $linefeed = '<br />';
     } else {
         $linefeed = "\n";
@@ -148,8 +148,10 @@ sub compare_checksums {
                             $numchg ++;
                         }
                     } else {
-                        $missing{$key} = 1;
-                        $numchg ++;
+                        unless ((-e $key) && (-B $key)) {
+                            $missing{$key} = 1;
+                            $numchg ++;
+                        }
                     }
                 }
                 foreach my $key (keys(%{$serversums})) {