diff --git a/addressbook/inc/class.addressbook_bo.inc.php b/addressbook/inc/class.addressbook_bo.inc.php
index fe0865eefa..d2c54c8d86 100755
--- a/addressbook/inc/class.addressbook_bo.inc.php
+++ b/addressbook/inc/class.addressbook_bo.inc.php
@@ -1723,6 +1723,7 @@ class addressbook_bo extends addressbook_so
 		{
 			$owner = $list_data['list_owner'];
 		}
+		//error_log(__METHOD__."($list, $required, $owner) grants[$owner]=".$this->grants[$owner]." returning ".array2string(!!($this->grants[$owner] & $required)));
 		return !!($this->grants[$owner] & $required);
 	}
 
@@ -1737,9 +1738,9 @@ class addressbook_bo extends addressbook_so
 	 */
 	function add_list($keys,$owner,$contacts=array(),array &$data=array())
 	{
-		if (!$this->check_list(null,EGW_ACL_ADD,$owner)) return false;
+		if (!$this->check_list(null,EGW_ACL_ADD|EGW_ACL_EDIT,$owner)) return false;
 
-		return parent::add_list($name,$owner,$contacts,$data);
+		return parent::add_list($keys,$owner,$contacts,$data);
 	}
 
 	/**
diff --git a/addressbook/inc/class.addressbook_groupdav.inc.php b/addressbook/inc/class.addressbook_groupdav.inc.php
index 10e16588f9..757d5d2dd0 100644
--- a/addressbook/inc/class.addressbook_groupdav.inc.php
+++ b/addressbook/inc/class.addressbook_groupdav.inc.php
@@ -207,7 +207,7 @@ class addressbook_groupdav extends groupdav_handler
 		// add groups after contacts
 		if (!$start || count($contacts) < $start[1])
 		{
-			if (($lists = $this->bo->read_lists(array('list_owner' => $filter['contact_owner']?$filter['contact_owner']:array_keys($this->bo->grants)))))
+			if (($lists = $this->bo->read_lists(array('list_owner' => isset($filter['contact_owner'])?$filter['contact_owner']:array_keys($this->bo->grants)))))
 			{
 				//_debug_array($lists);
 				foreach($lists as $list)
@@ -437,6 +437,7 @@ class addressbook_groupdav extends groupdav_handler
 		$oldContact = $this->_common_get_put_delete('PUT',$options,$id);
 		if (!is_null($oldContact) && !is_array($oldContact))
 		{
+			if ($this->debug) error_log(__METHOD__."(,'$id', $user, '$prefix') returning ".array2string($oldContact));
 			return $oldContact;
 		}
 
@@ -477,7 +478,7 @@ class addressbook_groupdav extends groupdav_handler
 			$contactId = -1;
 			$retval = '201 Created';
 		}
-		$is_group = $contact['##X-CALENDARSERVER-KIND'] == 'group';
+		$is_group = $contact['##X-ADDRESSBOOKSERVER-KIND'] == 'group';
 		if ($oldContact && $is_group !== isset($oldContact['list_id']))
 		{
 			throw new egw_exception_assertion_failed(__METHOD__."(,'$id',$user,'$prefix') can contact into group or visa-versa!");
@@ -512,6 +513,7 @@ class addressbook_groupdav extends groupdav_handler
 			if ($oldContact && $user != $oldContact['owner'] && !($this->bo->grants[$user] & EGW_ACL_ADD) &&
 				(!$this->bo->grants[$oldContact['owner']] & EGW_ACL_DELETE))
 			{
+				if ($this->debug) error_log(__METHOD__."(,'$id', $user, '$prefix') returning '403 Forbidden'");
 				return '403 Forbidden';
 			}
 			$contact['owner'] = $user;
@@ -543,6 +545,7 @@ class addressbook_groupdav extends groupdav_handler
 			header($h='Location: '.$this->base_uri.$path.self::get_path($contact));
 			if ($this->debug) error_log(__METHOD__."($method,,$id) header('$h'): $retval");
 		}
+		if ($this->debug > 1) error_log(__METHOD__."(,'$id', $user, '$prefix') returning ".array2string($retval));
 		return $retval;
 	}
 
@@ -606,6 +609,7 @@ class addressbook_groupdav extends groupdav_handler
 				if ($to_delete_ids) $this->bo->remove_from_list($to_delete_ids, $list_id);
 			}
 		}
+		if ($this->debug > 1) error_log(__METHOD__.'('.array2string($contact).', '.array2string($oldContact).') returning '.array2string($list_id));
 		return $list_id;
 	}
 
@@ -766,11 +770,16 @@ class addressbook_groupdav extends groupdav_handler
 				$contact[$name] = $contact['list_'.$name];
 			}
 		}
+		elseif($contact === array())	// not found from read_lists()
+		{
+			$contact = null;
+		}
 
 		if ($contact && $contact['tid'] == addressbook_so::DELETED_TYPE)
 		{
 			$contact = null;	// handle deleted events, as not existing (404 Not Found)
 		}
+		if ($this->debug > 1) error_log(__METHOD__."('$id') returning ".array2string($contact));
 		return $contact;
 	}
 
diff --git a/addressbook/inc/class.addressbook_so.inc.php b/addressbook/inc/class.addressbook_so.inc.php
index bf45db6909..492be93071 100755
--- a/addressbook/inc/class.addressbook_so.inc.php
+++ b/addressbook/inc/class.addressbook_so.inc.php
@@ -987,7 +987,7 @@ class addressbook_so
 	{
 		if (!method_exists($this->somain,'add_list')) return false;
 
-		return $this->somain->add_list($name,$owner,$contacts,$data);
+		return $this->somain->add_list($keys,$owner,$contacts,$data);
 	}
 
 	/**
diff --git a/addressbook/inc/class.addressbook_sql.inc.php b/addressbook/inc/class.addressbook_sql.inc.php
index 2af110c15d..37d1f8cb16 100644
--- a/addressbook/inc/class.addressbook_sql.inc.php
+++ b/addressbook/inc/class.addressbook_sql.inc.php
@@ -497,12 +497,19 @@ class addressbook_sql extends so_sql_cf
 	 */
 	function add_list($keys,$owner,$contacts=array(),array &$data=array())
 	{
-		if (!$keys || !(int)$owner) return false;
+		error_log(__METHOD__.'('.array2string($keys).", $owner, ..., ".array2string($data).')');
+		if (!$keys && !$data || !(int)$owner) return false;
 
-		if (!is_array($keys)) $keys = array('list_name' => $keys);
-		$keys['list_owner'] = $owner;
-
-		if (!($list_id = $this->select($this->lists_table,'list_id',$keys)->fetchColumn()))
+		if ($keys && !is_array($keys)) $keys = array('list_name' => $keys);
+		if ($keys)
+		{
+			$keys['list_owner'] = $owner;
+		}
+		else
+		{
+			$data['list_owner'] = $owner;
+		}
+		if (!$keys || !($list_id = $this->db->select($this->lists_table,'list_id',$keys)->fetchColumn()))
 		{
 			$data['list_created'] = time();
 			$data['list_creator'] = $GLOBALS['egw_info']['user']['account_id'];
@@ -513,6 +520,7 @@ class addressbook_sql extends so_sql_cf
 		}
 		$data['list_modified'] = time();
 		$data['list_modifier'] = $GLOBALS['egw_info']['user']['account_id'];
+		if (!$data['list_id']) unset($data['list_id']);
 
 		if (!$this->db->insert($this->lists_table,$data,$keys,__LINE__,__FILE__)) return false;
 
@@ -522,18 +530,18 @@ class addressbook_sql extends so_sql_cf
 			$update = array();
 			if (!isset($data['list_uid']))
 			{
-				$update['list_uid'] = $data['list_uid'] = common::generate_uid('addresbook-lists', $list_idD);
+				$update['list_uid'] = $data['list_uid'] = common::generate_uid('addresbook-lists', $list_id);
 			}
 			if (!isset($data['list_carddav_name']))
 			{
 				$update['list_carddav_name'] = $data['list_carddav_name'] = $data['list_uid'].'.vcf';
 			}
-			$this->db->update($this->lists_table,$update,array('list_id'=>$list_id));
+			$this->db->update($this->lists_table,$update,array('list_id'=>$list_id),__LINE__,__FILE__);
 
 			$this->add2list($list_id,$contacts,array());
 		}
-		$data += $keys;
-
+		if ($keys) $data += $keys;
+		//error_log(__METHOD__.'('.array2string($keys).", $owner, ...) data=".array2string($data).' returning '.array2string($list_id));
 		return $list_id;
 	}
 
@@ -549,7 +557,14 @@ class addressbook_sql extends so_sql_cf
 	{
 		if (!(int)$list || !is_array($contact) && !(int)$contact) return false;
 
-		if (!is_array($existing)) $existing = $this->read_list($list);
+		if (!is_array($existing))
+		{
+			$existing = array();
+			foreach($this->db->select($this->ab2list_table,'contact_id',array('list_id'=>$list),__LINE__,__FILE__) as $row)
+			{
+				$existing[] = $row['contact_id'];
+			}
+		}
 		if (!($to_add = array_diff((array)$contact,$existing)))
 		{
 			return true;	// no need to insert it, would give sql error
@@ -564,7 +579,7 @@ class addressbook_sql extends so_sql_cf
 			),array(),__LINE__,__FILE__);
 		}
 		// update etag
-		return $this->db->update($this->list_table,array(
+		return $this->db->update($this->lists_table,array(
 			'list_etag=list_etag+1',
 			'list_modified' => time(),
 			'list_modifier' => $GLOBALS['egw_info']['user']['account_id'],
@@ -605,7 +620,7 @@ class addressbook_sql extends so_sql_cf
 		}
 		foreach((array)$list as $list_id)
 		{
-			$this->db->update($this->list_table,array(
+			$this->db->update($this->lists_table,array(
 				'list_etag=list_etag+1',
 				'list_modified' => time(),
 				'list_modifier' => $GLOBALS['egw_info']['user']['account_id'],
diff --git a/addressbook/inc/class.addressbook_vcal.inc.php b/addressbook/inc/class.addressbook_vcal.inc.php
index 3a968e4185..8cd9d15059 100644
--- a/addressbook/inc/class.addressbook_vcal.inc.php
+++ b/addressbook/inc/class.addressbook_vcal.inc.php
@@ -971,9 +971,8 @@ class addressbook_vcal extends addressbook_bo
 				}
 			}
 			// add unsupported attributes as with '##' prefix
-			else
+			elseif(($attribute = $vcardValues[$vcardKey]) && !in_array($attribute['name'],array('PRODID','REV')))
 			{
-				$attribute = $vcardValues[$vcardKey];
 				// for attributes with multiple values in multiple lines, merge the values
 				if (isset($contact['##'.$attribute['name']]))
 				{