Index: AA.pm
===================================================================
--- AA.pm	(revision 6872)
+++ AA.pm	(working copy)
@@ -1141,8 +1141,8 @@
 
     if ( $form->{open} || $form->{closed} ) {
         unless ( $form->{open} && $form->{closed} ) {
-            $where .= " AND pd.due <> 0" if ( $form->{open} );
-            $where .= " AND pd.due = 0"  if ( $form->{closed} );
+            $where .= " AND abs(pd.due) >= 0.005" if ( $form->{open} );
+            $where .= " AND abs(pd.due) < 0.005"  if ( $form->{closed} );
         }
     }