diff -Naurw moodle-clean/moodle/calendar/lib.php moodle-dev/calendar/lib.php
--- moodle-clean/moodle/calendar/lib.php	2008-05-01 01:16:17.000000000 +0100
+++ moodle-dev/calendar/lib.php	2009-05-13 13:44:48.000000000 +0100
@@ -229,6 +229,7 @@
                     continue;
                 }
                 $event = $events[$eventid];
+                $fullname='';
                 if(!empty($event->modulename)) {
                     $popupicon = $CFG->modpixpath.'/'.$event->modulename.'/icon.gif';
                     $popupalt  = $event->modulename;
@@ -239,6 +240,7 @@
                 } else if ($event->courseid != 0 && $event->courseid != SITEID && $event->groupid == 0) {      // Course event
                     $popupicon = $CFG->pixpath.'/c/course.gif';
                     $popupalt  = '';
+                    $fullname= get_record('course', 'id', $event->courseid)->fullname;
                 } else if ($event->groupid) {                                      // Group event
                     $popupicon = $CFG->pixpath.'/c/group.gif';
                     $popupalt  = '';
@@ -246,7 +248,7 @@
                     $popupicon = $CFG->pixpath.'/c/user.gif';
                     $popupalt  = '';
                 }
-                $popupcontent .= '<div><img class="icon" src="'.$popupicon.'" alt="'.$popupalt.'" /><a href="'.$dayhref.'#event_'.$event->id.'">'.format_string($event->name, true).'</a></div>';
+                $popupcontent .= '<div>'.$fullname.'<br /><img class="icon" src="'.$popupicon.'" alt="'.$popupalt.'" /><a href="'.$dayhref.'#event_'.$event->id.'">'.format_string($event->name, true).'</a></div>';
             }
 
             //Accessibility: functionality moved to calendar_get_popup.