Hi, it doesn't work with my dad either, he thinks he has two flats the same, but in different locations and he thinks that somehow all his furniture etc is moved from place to place daily!! He remembers that he has rung me and is aware that it's an unsociable time etc, when I pulled up outside his home today, he came to my car before I managed to get everything together and get out the car myself!!! I asked him if he recognised where he was now, he said no not really but got a bit shirty when I pointed out all his things, well yes I know that he said!!!! We have come back from shop and he seems a little better, but I'm sure after I leave I will get phone calls again