Oddly, when I go to Start - Turn Off - Turn Off (or Restart) nothing at all appears to happen. It isn't a delay, 'cos I've tried leaving the machine in that state for a long time. However, if I carry out exactly the same procedure again, immediately or later, it works correctly. Every time!
Not a problem, as it always does perform on the second attempt, I just wondered if anyone had any idea why it does this (or doesn't)?
Thanks for the suggestion, Arrgee. Tried that one (plus Registry Mechanic and several others)and checked for spyware, virus etc. Everything tells me no problem, but still it does it. As I say, it's not a real problem, just interesting.