Please excuse my delay. With the 'changed' keyboard I seem to have changed my Apple ID Password to something I didn't recognize. prior to posting my problem, one of my attempts at correction was to restart my macbook. It did not correct the problem. After I posted the message and received answers, the next morning, the problem had corrected itself. I wish I had "Grab" a screenshot of the keyboard. It had 2 extra keys - one on either side of the spacebar. The extra keys are not there any more.
Oh! asdfg But other keys and there 'Shift' mode had changed. Example - 'Shift' 2was not '@' but was - I think - a dash. Made it hard to enter an email address while trying to reset an Apple ID password.
I think that somehow - a different keyboard driver installed. Virus? Intruder? Hard drive hic-cup?
All seems to be OK today so - Thanks for the input but I can't tell where to go from here!