Tony I don't know why we only have a very short window to edit our post. That's biggest fault with this forum. Sometimes we want to say something but don't have but 5 minutes or so because we have to go to the Doctor, go to the store, go beat up the neighbor because they just insulted our wife and a million other reasons. Then, if I'd say to myself, well I'll post later, I've forgotten about it 3 minutes later. Sometimes I see a stupid mistake I made after spending 20 minutes check spelling so on and so fort and read it a week later, what can you feel but stupid and can't do anything about it. I can't see one reason for this. Would someone help me understand this? Nigel please?