Finally.....
......it went away! Just like that!
And another thing - what's with the implication of "old too" Mr Rivets? I'll have you know that right beside my backbone I'm 35 and I'm not really old enough to have a 43 year old daughter and a 42 year old son. And google doesn't always have the right answer to everything. It depends on the way you're educated. F'rinstance the patron at this chambre d'hote where we're staying looked askance at my using a mouse "Why do you use that thing at all? I do it all on the keyboard" and proceeded to demonstrate. I'd never seen that done before - no-one ever showed me.
Anyway I thought I'd pop back in to say thankyou for the helpful tips - I continue to learn new things every day.
The Ancient Mariner