have had a 2007 xtype for around 4 months.no problems at all untill started having problems opening the door with the key fob.this continued so i tried changing the batteries in the key fob.made no difference and was just the same.tried to start the car another time but it immobalised itself.has done this a few times now and still lots of problems opening the doors.sometimes it will only open the back doors,sometimes will open none.have tried re-programing the keys but that has made no difference.......can anybody give me any advice please.