So, it looks like no one has an answer to this yet? Surely automatically adding the first letter as capitalised in each sentence/line should be part of the spell check system? Same as correcting an i to an I when it is typed on it's own. Very frustrating as i switch from a PC at work where i never need to use the shift key, to a Mac at home where i need to shift key every capital letter. Why Apple??
Also - why are some people so flippant and rude? Be nice - it's a simple and honest question and it deserves a polite answer or none at all!