Like Syd I have noticed =20 at the ends of the lines, ( or where the line ends were when I wrote the message).
I am not seeing this, John. It does seem to be happening only with your system.
Full marks for your stubborn attitude to the problems with BT but my approach has been to vote with my wallet. Why suffer all these problems and irritation when you could most likely be getting on with doing things on the net , and enjoying it, using a better ISP.
You know my recommendation so I won't repeat it but do remember that they offer a genuine month's free trial.
Best wishes Syd