diff --git a/addressbook/inc/class.bocontacts.inc.php b/addressbook/inc/class.bocontacts.inc.php
index 6c790a939a..7df84bdd5f 100755
--- a/addressbook/inc/class.bocontacts.inc.php
+++ b/addressbook/inc/class.bocontacts.inc.php
@@ -466,10 +466,16 @@ class bocontacts extends socontacts
 		}
 		$owner = $contact['owner'];
 		
+		// allow the user to edit his own account
 		if (!$owner && $needed == EGW_ACL_EDIT && $contact['account_id'] == $this->user)
 		{
 			return true;
 		}
+		// dont allow to delete own account (as admin handels it too)
+		if (!$owner && $needed == EGW_ACL_DELETE && $contact['account_id'] == $this->user)
+		{
+			return false;
+		}
 		return ($this->grants[$owner] & $needed) && 
 			(!$contact['private'] || ($this->grants[$owner] & EGW_ACL_PRIVATE) || in_array($owner,$this->memberships));
 	}
diff --git a/addressbook/inc/class.so_ldap.inc.php b/addressbook/inc/class.so_ldap.inc.php
index a401af98c8..bd415bb249 100644
--- a/addressbook/inc/class.so_ldap.inc.php
+++ b/addressbook/inc/class.so_ldap.inc.php
@@ -78,6 +78,10 @@ class so_ldap
 	 * @var array
 	 */
 	var $schema2egw = array(
+		'posixaccount' => array(
+			'account_id'	=> 'uidnumber',
+			'account_lid'	=> 'uid',
+		),
 		'inetorgperson' => array(
 			'n_fn'			=> 'cn',
 			'n_given'		=> 'givenname',
diff --git a/addressbook/inc/class.uicontacts.inc.php b/addressbook/inc/class.uicontacts.inc.php
index ad8c9becc1..9380848d2a 100644
--- a/addressbook/inc/class.uicontacts.inc.php
+++ b/addressbook/inc/class.uicontacts.inc.php
@@ -271,7 +271,8 @@ class uicontacts extends bocontacts
 						{
 							$Ok = $this->delete($id);
 						}
-						elseif (count($checked) == 1)	// delete single account --> redirect to admin
+						// delete single account --> redirect to admin
+						elseif (count($checked) == 1 && $contact['account_id'])	
 						{
 							$GLOBALS['egw']->redirect_link('/index.php',array(
 								'menuaction' => 'admin.uiaccounts.delete_user',