I had tried this several times, but perhaps I had not held it in long enough?
This time it reverted to the boot up screen (tree on hillside) and eventually opened up the home screen.
I have returned to the pages I was reading, but it was well short of where I had finished, however the pages do seem to be turning properly now.
Thank you for your help, time will tell if it is cured!
Thank you Richard,
I have tried to rate your service, but "an error occurred"
Not my day is it?