David,
Thanks, sorry for taking some time but I was on a business trip. My keyboard has the delete on the same key as backspace (second down on the right)
After much trying, I can see it works sometimes.
It doesn’t work but after many tries it starts working. To verify connectivity, before I begin trying, I click caps and call tell on the laptop that it works (it lights up the corresponding LED). However, If I start ctrl-alt-del, it doesn’t work for a period of time.
A second problem is with the letter “E”. It works very unreliably. I need to go back often and type it again slowly. Other letters around it work well.
Thanks for your help.