Automatic correction of plurals

Thank you, Esquared, for replying so promptly. But you perhaps missed what I said in my posting: this unwanted autocorrection even happens when I type here in these discussions — not using any application at all. It is a systemic problem, not an application-specific one (as I also said above). For the record, autocorrection is turned off in Word and Pages.

Dear Tom Gewecke, thank you for putting me right on that score. Yes, indeed, I am using my browser (Safari, as it happens). But I have already said (twice) that autocorrection is turned off everywhere, in all applications that I have been using.

I suppose offensive remarks may be tolerable when they are accurate, Tom Gewecke, but not when they are incorrect. I have looked through this by now quite extensive correspondence, and I see that I have mentioned system preferences precisely once — in my first posting.

To save further repetitions (three so far) of my statement that in the applications that I generally use (including my browser) 'Correct spelling automatically' (autocorrection) is turned OFF, I will list the applications in which I have checked that it is turned off: Safari, Pages, Word, TextEdit, Mellel and Excel (in which, as well as ordinary autocorrection, there is a special 'Correct two capitals automatically' feature, which is also turned off. None of these allows me to type text like 'GPs'.

I should add to the above that in the listed apps 'Check spelling' (as opposed to 'Correct spelling') is turned ON, but I have tried turning it, too, off in one or two of these apps — and (and here I must mention them again!) — in system preferences — and that does not resolve the problem.

That's all right; no offence taken. No, I haven't got WordService or anything like that. I shall try what you suggest, but it may take me a while, because I have rather a lot of work and other things to deal with just now. Thank you for the suggestion.

Thanks, Esquared. Quite honestly, it's less trouble just retyping the offending lower-case letter than going through elaborate rituals to circumvent the problem. But if and when I have some spare time, I may try Tom Gewecke's idea (as above).

I decided I would try Tom Gewecke's suggestion. I created a new user's account, and lo and behold the problem was cured. But I then found that I would have to recreate so many things — from desktop picture and screensaver to the contents of the Dock, and no doubt much else — that I decided to go back to my old user's account.

So I am still in the market for any further suggestions for curing this irritating problem. Thank you in anticipation.