Index: openacs-4/packages/imsld/tcl/imsld-procs.xql
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/imsld/tcl/imsld-procs.xql,v
diff -u -r1.37.4.3 -r1.37.4.4
--- openacs-4/packages/imsld/tcl/imsld-procs.xql	9 Jul 2007 16:09:51 -0000	1.37.4.3
+++ openacs-4/packages/imsld/tcl/imsld-procs.xql	23 Aug 2007 09:27:31 -0000	1.37.4.4
@@ -750,7 +750,7 @@
 		<querytext>
             select ias.structure_id,
             ias.item_id as structure_item_id,
-            ias.number_to_select
+            coalesce(ias.number_to_select, 0) as number_to_select
             from acs_rels ar, imsld_activity_structuresi ias, cr_items cri
             where ar.object_id_one = ias.item_id
             and ar.object_id_two = cri.item_id