My system version is 6.12.215.XT894.Version.en.US
My father holds a doctorate in english from Cornell and has taught writing and literature at a good university since 1975.
And he's always told me that capitalizing "i" and "a" when they are alone (not at the beginning of a sentence) is not really a rule. He actually marks it wrong on papers. At least he sure did on mine.
Type Assist is the devil. The only thing it 'assists' with is making me look stupid. (Ed. Thanks I don't need a reply saying "You don't need any assistance with that!" )