Wiix, thank you but I know that one.

Here is the interesting (?) side effect of that one --- Say I have typed ten lines, and my problem line is line 3. I do what you say and I then line 6 is messed up. I correct it, then line 8 gets messed up and so on. So I spend awhile correcting all of them, instead of just doing it right the first time.

I did as suggested and changed my computer per this website and it seems to have made a difference, so far. But other websites are still messed up.

Still working on it....