Scraglad,
Well Done for sticking to your guns.
I've been reading these forums for a while now and not wanted to contribute however the barrage of patronising comments hurled at you today have driven me to post for the first time.
I was absolutely stunned at the responses you received!
Tolerance is obviously not something certain posters have in abundance on this thread.
Keep on asking the questions and keep on enriching your knowledge. As for the small minded folk ... well they can stay small minded.