Thanks for your input Dave67 for interest the problem is solved and I am closing the Post.
It was solved on a different Forum however a LOT of replies did not help until someone suggested changing my browser to Firefox which I did and 'brilliant' no further trouble as I was able to untick SCROLLING which I could not do in Chrome and no further trouble.
Your suggestion to change the mouse !! no it was a brand new mouse which I now love as it's BIG whereas my previous mouse was a White Wireless and came with a keyboard I no longer use.
I've just got to suss how to STOP this post SOLVED must be somewhere thanks again.