Index: trunk/admin/head.php
===================================================================
diff -u -N -r3983 -r4077
--- trunk/admin/head.php	(.../head.php)	(revision 3983)
+++ trunk/admin/head.php	(.../head.php)	(revision 4077)
@@ -132,7 +132,7 @@
 			$http_request.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT");
         	$http_request.send(null);
 
-        	setTimeout('checkServer()', 5 * 60000);	// one time in 5 minutes
+        	setTimeout('checkServer()', 20 * 60000);	// one time in 20 minutes
         }
 
         checkServer();