@leocg Thanks, sorted.
I did not know that the correct way is simply to click on the "O" in top-left and go down to "Help..." . the opera://about shortcut is probably more useful in terms of my nefarious world domination plans though. I had installed 70 a week odd ago, without knowing that I need to be on 71 in order for webdriver/selenium latest driver to work.

I was (am) running this driver
C:\Users\cb.wdm\drivers\operadriver\win64\v.85.0.4183.102\operadriver_win64/operadriver.exe which kept erroring telling me I need Opera 85.0 , which I assumed was a bad error message. But right now, a very happy camper! BTW loving Opera, it's a bit overwhelming when you start with it, but recommending.

I cannot find the about box (Windows 10)?
https://forums.opera.com/topic/4519/how-do-i-find-out-what-version-of-opera-i-m-using is not helping me.
I actually want to install version 85, but I think I'm on version 100 or something? Is that right, can we make it easier to check?