diff --git a/infolog/inc/class.infolog_groupdav.inc.php b/infolog/inc/class.infolog_groupdav.inc.php
index 021276e4a4..0fa8a23a46 100644
--- a/infolog/inc/class.infolog_groupdav.inc.php
+++ b/infolog/inc/class.infolog_groupdav.inc.php
@@ -22,7 +22,7 @@ class infolog_groupdav extends groupdav_handler
 	 * @var infolog_bo
 	 */
 	var $bo;
-
+	static $debugInfo = 0; // sometimes debuging is quite handy, to see things. check with the error log to see results
 	/**
 	 * Constructor
 	 *
@@ -32,8 +32,10 @@ class infolog_groupdav extends groupdav_handler
 	 */
 	function __construct($app,$debug=null,$base_uri=null)
 	{
+		if (self::$debugInfo) $debug = self::$debugInfo;
+		if (self::$debugInfo) error_log(__METHOD__." called ");
 		parent::__construct($app,$debug,$base_uri);
-
+		if (self::$debugInfo) error_log(__METHOD__." parent constructed with $app,$debug,$base_uri; initializing infolog_bo ");
 		$this->bo =& new infolog_bo();
 	}
 
@@ -47,6 +49,7 @@ class infolog_groupdav extends groupdav_handler
 	 */
 	static function get_path($info)
 	{
+		if (self::$debugInfo) error_log(__METHOD__." called with".print_r($info,true));
 		if (is_numeric($info) && self::PATH_ATTRIBUTE == 'info_id')
 		{
 			$name = $info;
@@ -54,6 +57,7 @@ class infolog_groupdav extends groupdav_handler
 		else
 		{
 			if (!is_array($info)) $info = $this->bo->read($info);
+			if (self::$debugInfo) error_log(__METHOD__." returning info on ".print_r( $info,true));
 			$name = $info[self::PATH_ATTRIBUTE];
 		}
 		return '/infolog/'.$name.'.ics';
@@ -70,6 +74,7 @@ class infolog_groupdav extends groupdav_handler
 	 */
 	function propfind($path,$options,&$files,$user,$id='')
 	{
+		if (self::$debugInfo) error_log(__METHOD__." called ");
 		// todo add a filter to limit how far back entries from the past get synced
 		$filter = array(
 			'info_type'	=> 'task',
@@ -112,6 +117,7 @@ class infolog_groupdav extends groupdav_handler
 	 */
 	function get(&$options,$id)
 	{
+		if (self::$debugInfo) error_log(__METHOD__." called ");
 		if (!is_array($task = $this->_common_get_put_delete('GET',$options,$id)))
 		{
 			return $task;
@@ -134,6 +140,7 @@ class infolog_groupdav extends groupdav_handler
 	 */
 	function put(&$options,$id,$user=null)
 	{
+		if (self::$debugInfo) error_log(__METHOD__." called ");
 		$ok = $this->_common_get_put_delete('PUT',$options,$id);
 		if (!is_null($ok) && !is_array($ok))
 		{
@@ -142,7 +149,7 @@ class infolog_groupdav extends groupdav_handler
 		$handler = $this->_get_handler();
 		if (!($info_id = $handler->importVTODO($options['content'],is_numeric($id) ? $id : -1)))
 		{
-			if ($this->debug) error_log(__METHOD__."(,$id) import_vtodo($options[content]) returned false");
+			if ($this->debug ) error_log(__METHOD__."(,$id) import_vtodo($options[content]) returned false");
 			return '403 Forbidden';
 		}
 		header('ETag: '.$this->get_etag($info_id));
@@ -163,6 +170,7 @@ class infolog_groupdav extends groupdav_handler
 	 */
 	function delete(&$options,$id)
 	{
+		if (self::$debugInfo) error_log(__METHOD__." called ");
 		if (!is_array($task = $this->_common_get_put_delete('DELETE',$options,$id)))
 		{
 			return $task;
@@ -178,6 +186,7 @@ class infolog_groupdav extends groupdav_handler
 	 */
 	function read($id)
 	{
+		if (self::$debugInfo) error_log(__METHOD__." called ");
 		return $this->bo->read($id,false);
 	}
 
@@ -190,6 +199,7 @@ class infolog_groupdav extends groupdav_handler
 	 */
 	function check_access($acl,$task)
 	{
+		if (self::$debugInfo) error_log(__METHOD__." called ");
 		return $this->bo->check_access($task,$acl);
 	}
 
@@ -201,6 +211,7 @@ class infolog_groupdav extends groupdav_handler
 	 */
 	function get_etag($info)
 	{
+		if (self::$debugInfo) error_log(__METHOD__." called ");
 		if (!is_array($info))
 		{
 			$info = $this->bo->read($info);
@@ -219,9 +230,11 @@ class infolog_groupdav extends groupdav_handler
 	 */
 	private function _get_handler()
 	{
+		if (self::$debugInfo) error_log(__METHOD__." called ");
 		$handler =& new infolog_ical();
 		$handler->setSupportedFields('GroupDAV',$this->agent);
 
 		return $handler;
 	}
-}
\ No newline at end of file
+}
+
diff --git a/infolog/inc/class.infolog_ical.inc.php b/infolog/inc/class.infolog_ical.inc.php
index d2dc783646..e331ca5f6e 100644
--- a/infolog/inc/class.infolog_ical.inc.php
+++ b/infolog/inc/class.infolog_ical.inc.php
@@ -11,6 +11,8 @@
  */
 
 require_once EGW_API_INC.'/horde/Horde/iCalendar.php';
+require_once EGW_API_INC.'/horde/Horde/iCalendar/vnote.php';
+require_once EGW_API_INC.'/horde/Horde/iCalendar/vtodo.php';
 
 /**
  * InfoLog: Create and parse iCal's
@@ -70,7 +72,7 @@ class infolog_ical extends infolog_bo
 		{
 			$vevent->setAttribute($field,$value);
 			$options = array();
-			if(preg_match('/([\000-\012\015\016\020-\037\075])/',$value))
+			if($this->productManufacturer != 'GroupDAV' &&  preg_match('/([\000-\012\015\016\020-\037\075])/',$value))
 			{
 				$options['ENCODING'] = 'QUOTED-PRINTABLE';
 			}
@@ -102,8 +104,10 @@ class infolog_ical extends infolog_bo
 			$cats = $this->get_categories(array($taskData['info_cat']));
 			$vevent->setAttribute('CATEGORIES', $cats[0]);
 		}
+		//error_log("\n\nexportvcal\n". print_r($vcal,true));
+		//error_log("\n\nexportvcal\n". print_r($vevent,true));
 		$vcal->addComponent($vevent);
-
+		error_log("\n\nexportvcal from infolog\n");
 		return $vcal->exportvCalendar();
 	}
 
@@ -356,7 +360,7 @@ class infolog_ical extends infolog_bo
 				else
 				{
 					// should better be imported as subject, but causes duplicates
-					// TODO: should be examined
+					// TODO: should be qexamined
 					$note['info_des'] = $txt;
 				}
 
diff --git a/infolog/inc/class.infolog_sif.inc.php b/infolog/inc/class.infolog_sif.inc.php
index f595c80545..c7f50bc410 100644
--- a/infolog/inc/class.infolog_sif.inc.php
+++ b/infolog/inc/class.infolog_sif.inc.php
@@ -439,6 +439,7 @@ class infolog_sif extends infolog_bo
 
 	function exportVTODO($_taskID, $_version)
 	{
+		error_log(__METHOD__."called : $_version ,$_taskID");
 		$taskData = $this->read($_taskID);
 
 		$taskData = $GLOBALS['egw']->translation->convert($taskData,$GLOBALS['egw']->translation->charset(),'UTF-8');