The engineer got me going. What else needs to be said? He was very patient with me and of course quite clearly very knowledgeable. I will be in need of your help many more times, I am quite sure about that. I was tired last time to carry on further... The problem is time - that is to make time to sit down for a number of hours and pick up small things. I don't know how to put things right or correct something that had been working and suddenly stops. I am having a brake from all and I shall get in touch at the beginning of July. If there is something you can help with from distance - what I need to get back is the keyboard doesn't light up in darkness. Can you tell me how to correct that? I am sure it is possibly just to press some key or hold two... thanks for help. LBH