John...thanks for sorting out the user id
I've pulled out all my hair and hit the brandy/whisky/beer trying to get my head around the system hanging.
In the end, Google came good with (what still appears) to be the solution. I just hope nobody asks me to explain, other than, yet again, pulling the power cord and plugging it back provides the answer!
Like I said earlier, I'm now sticking strictly to the boating
Thanks to all those who sent suggestions