Index: grade_item.php
===================================================================
RCS file: /cvsroot/moodle/moodle/lib/grade/grade_item.php,v
retrieving revision 1.130.2.26
diff -u -a -w -b -B -r1.130.2.26 grade_item.php
--- grade_item.php	27 Mar 2008 17:13:01 -0000	1.130.2.26
+++ grade_item.php	20 Oct 2008 23:17:34 -0000
@@ -1613,10 +1613,12 @@
         }
 
         // precreate grades - we need them to exist
+        $course_id_sql = "SELECT courseid FROM {$CFG->prefix}grade_items WHERE id = $this->id";
+	$course_id = get_record_sql($course_id_sql);
         $sql = "SELECT DISTINCT go.userid
                   FROM {$CFG->prefix}grade_grades go
                        JOIN {$CFG->prefix}grade_items gi
-                       ON gi.id = go.itemid
+                       ON ( gi.id = go.itemid AND gi.courseid = $course_id->courseid )
                        LEFT OUTER JOIN {$CFG->prefix}grade_grades g
                        ON (g.userid = go.userid AND g.itemid = $this->id)
                  WHERE gi.id <> $this->id AND g.id IS NULL";