diff -Naurw moodle-clean/moodle/calendar/lib.php moodle-dev/calendar/lib.php
--- moodle-clean/moodle/calendar/lib.php	2009-05-13 14:04:12.000000000 +0100
+++ moodle-dev/calendar/lib.php	2009-05-13 14:06:33.000000000 +0100
@@ -246,7 +246,8 @@
                     $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>';
+                if(!$fullname= get_record('course', 'id', $event->courseid)->fullname){$fullname='';}
+                $popupcontent .= '<div>'.$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.