Thanks for the advice and I will look to see if it gives a list of changes.
I have another question!
Recently I noticed a small revolving blue circle which often appears next to the cursor.
I'm pretty certain this did not appear on my previous computer or, for the first 2 months, with my new PC.
Is this of any importance?
I would appreciate any further responses, to either of these questions, altho' I believe hazelnuts' comment to be correct.
I know this is irrelevant but after I posted I checked and found one can use "hazelnuts' comment or hazelnuts's comment" according to one grammar website!