Thanks guys, on a funny side of things now, the brain is certainly a strange object, Mum has come home from hospital with an idea that she doesn't wear glasses and is always removing hers. I have had to show her photo's of her to prove she does but that appears not to be enough to persuade her to keep her glasses on. And I thought it was bad enough looking at her without her false teeth in but Mum without glasses is totally new to me.