Strange....I had at first assumed that the generic lists would do the job. After all, they worked for a few moments.
In a nutshell, this is what my last post was asking. Or, is there a function that I've missed time and time again that causes the program to write its own filters?
After all this cafuffle, I then assumed that I had to put a lot more work into achieving the goal of no adds. I was getting very aware that playing with computers had stopped any productive work for some weeks. But as long as it's fun...but not winning on any front had stopped it being fun.
Anyway, last night, having introduced many, many filters, the screen was clear. The Google one this lunchtime GMT - 6, defies all attempts to block it. Paste in the full address or get it off Properties, makes no difference. It's gone for the time being anyway.