OK .... First thanks for all the positive ideas and suggestions, I shall try them.
BUT... I came on line at 6.30 and fought my way to a couple of posts. I wasn't surprised when an update announced itself at 6.45 and the screen went blue with the circling thing. At 8.30 (still with a blank screen) I long-pressed the 'off' button. At 9.00 p.m. I re-started it and was met with an 83% uploaded message. By 9.30 it told me all was done. Hooray! Callou! Callay!
Then I got all sorts of things asking me to transfer data etc. EH? I took a deep breath, switched it off, restarted it and here I am. I am really on the point of saying 'goodbye' to technology, I really am. I would miss you folks , which is why I am trying now.
I suppose I'm saying that it is all getting beyond me. I am going to call into Curry's tomorrow and ask about re-installing Windows 7. :)