diff -up gosa-combined-2.6.10/include/class_config.inc.02 gosa-combined-2.6.10/include/class_config.inc
--- gosa-combined-2.6.10/include/class_config.inc.02	2010-02-05 14:51:35.000000000 +0100
+++ gosa-combined-2.6.10/include/class_config.inc	2010-05-24 08:21:41.371435389 +0200
@@ -100,12 +100,12 @@ class config  {
         if we have installed or removed plugins. 
      */
     if(session::global_is_set("class_location.inc:timestamp")){
-      $tmp = stat("../include/class_location.inc");
+      $tmp = $tmp = stat("/var/cache/gosa/class.cache");
       if($tmp['mtime'] != session::global_get("class_location.inc:timestamp")){
         session::global_un_set("plist");
       }
     }
-    $tmp = stat("../include/class_location.inc");
+    $tmp = stat("/var/cache/gosa/class.cache");
     session::global_set("class_location.inc:timestamp",$tmp['mtime']);
 
     if($this->filename != "" && filemtime($this->filename) != $this->last_modified){
diff -up gosa-combined-2.6.10/include/functions.inc.02 gosa-combined-2.6.10/include/functions.inc
--- gosa-combined-2.6.10/include/functions.inc.02	2010-05-24 08:21:17.523295153 +0200
+++ gosa-combined-2.6.10/include/functions.inc	2010-05-24 08:21:41.370670350 +0200
@@ -73,7 +73,7 @@ $svn_path = '$HeadURL: https://oss.gonic
 $svn_revision = '$Revision: 17589 $';
 
 /* Include required files */
-require_once("class_location.inc");
+require_once("/var/cache/gosa/class.cache");
 require_once ("functions_debug.inc");
 require_once ("accept-to-gettext.inc");
 
diff -up gosa-combined-2.6.10/update-gosa.02 gosa-combined-2.6.10/update-gosa
--- gosa-combined-2.6.10/update-gosa.02	2008-06-10 09:56:22.000000000 +0200
+++ gosa-combined-2.6.10/update-gosa	2010-05-24 08:21:41.370670350 +0200
@@ -21,7 +21,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-define ("GOSA_HOME", dirname(__FILE__));
+define ("GOSA_HOME", "/usr/share/gosa");
 define ("LOCALE_DIR", GOSA_HOME."/locale");
 define ("PLUGSTATE_DIR", GOSA_HOME."/state");
 
@@ -122,8 +122,8 @@ function get_classes($folder= ".")
 function rescan_classes()
 {
 	echo "Updating class cache...\n";
-	$class_mapping= get_classes();
-	$filename= GOSA_HOME."/include/class_location.inc";
+	$class_mapping= get_classes("/usr/share/gosa");
+	$filename= "/var/cache/gosa/class.cache";
 
 	/* Sanity checks */
 	if (!file_exists($filename) || is_writable($filename)) {