diff --git a/lam-0.4/lib/account.inc b/lam-0.4/lib/account.inc
index 8f956d85..3236fc35 100644
--- a/lam-0.4/lib/account.inc
+++ b/lam-0.4/lib/account.inc
@@ -23,6 +23,8 @@ $Id$
   LDAP Account Manager functions used by account.php
 */
 
+// PHP 5 compatibility
+if( phpversion() >= "5" ) ini_set( "zend.ze1_compatibility_mode", 1 );
 
 // This class keeps all needed values for any account
 class account {
@@ -2380,6 +2382,7 @@ function creategroup($values, $uselamdaemon=true) {
 *	5 == Error while modifying Account
 */
 function modifygroup($values,$values_old, $uselamdaemon=true) {
+	print_r($values);print_r($values_old);
 	// Add missing objectclasses to group
 	if (!in_array('posixGroup', $values->general_objectClass)) {
 		$attr['objectClass'] = $values->general_objectClass;
diff --git a/lam-0.4/lib/config.inc b/lam-0.4/lib/config.inc
index bd1d7bbe..a5f6b38b 100644
--- a/lam-0.4/lib/config.inc
+++ b/lam-0.4/lib/config.inc
@@ -24,6 +24,9 @@ $Id$
 
 */
 
+// PHP 5 compatibility
+if( phpversion() >= "5" ) ini_set( "zend.ze1_compatibility_mode", 1 );
+
 include_once("status.inc");
 
 // sets language settings for automatic translation
diff --git a/lam-0.4/lib/ldap.inc b/lam-0.4/lib/ldap.inc
index f440f572..14e9b63d 100644
--- a/lam-0.4/lib/ldap.inc
+++ b/lam-0.4/lib/ldap.inc
@@ -23,6 +23,9 @@ $Id$
 
 // ldap.inc provides basic functions to connect to the OpenLDAP server.
 
+// PHP 5 compatibility
+if( phpversion() >= "5" ) ini_set( "zend.ze1_compatibility_mode", 1 );
+
 include_once("config.inc");
 include_once("blowfish.inc");
 
diff --git a/lam-0.4/lib/pdf.inc b/lam-0.4/lib/pdf.inc
index 3e17d52a..aed997f3 100644
--- a/lam-0.4/lib/pdf.inc
+++ b/lam-0.4/lib/pdf.inc
@@ -23,6 +23,9 @@ $Id$
   LDAP Account Manager lamPDF class and some pdf functions
 */
 
+// PHP 5 compatibility
+if( phpversion() >= "5" ) ini_set( "zend.ze1_compatibility_mode", 1 );
+
 define('FPDF_FONTPATH', 'font/');
 include_once("fpdf.php");
 
diff --git a/lam-0.4/lib/profiles.inc b/lam-0.4/lib/profiles.inc
index b56aab67..9037a09a 100644
--- a/lam-0.4/lib/profiles.inc
+++ b/lam-0.4/lib/profiles.inc
@@ -23,6 +23,9 @@ $Id$
 
 // profiles.inc provides functions to load and save profiles for users/groups/hosts
 
+// PHP 5 compatibility
+if( phpversion() >= "5" ) ini_set( "zend.ze1_compatibility_mode", 1 );
+
 include_once("config.inc");
 include_once("account.inc");
 include_once("ldap.inc");
diff --git a/lam-0.4/lib/status.inc b/lam-0.4/lib/status.inc
index dbf5ba93..7b860c04 100644
--- a/lam-0.4/lib/status.inc
+++ b/lam-0.4/lib/status.inc
@@ -23,6 +23,9 @@ $Id$
   LDAP Account Manager status messages.
 */
 
+// PHP 5 compatibility
+if( phpversion() >= "5" ) ini_set( "zend.ze1_compatibility_mode", 1 );
+
 function StatusMessage($MessageTyp,$MessageHeadline,$MessageText,$MessageVariables = array()) {
 	/* Setting CSS-StyleSheet class depending on the $MessageTyp and rewriting $MessageTyp with a readable string. */
 	if($MessageTyp == "INFO") {
diff --git a/lam-0.4/templates/account/groupedit.php b/lam-0.4/templates/account/groupedit.php
index 19cd03fa..ebc2b2a6 100644
--- a/lam-0.4/templates/account/groupedit.php
+++ b/lam-0.4/templates/account/groupedit.php
@@ -135,6 +135,7 @@ switch ($_POST['select']) {
 		do { // X-Or, only one if() can be true
 			if (isset($_POST['users']) && isset($_POST['add'])) { // Add users to list
 				// Add new user
+				if (!is_array($account_new->unix_memberUid)) $account_new->unix_memberUid = array();
 				$account_new->unix_memberUid = array_merge($account_new->unix_memberUid, $_POST['users']);
 				// remove doubles
 				$account_new->unix_memberUid = array_flip($account_new->unix_memberUid);