I hooked up another, new, unused mouse - and - it works much much better.
The old mouse is an Acer and came with the computer…

I can now put the curser beside a letter and correct it
without trying several times and the page all the way going blue…
These old mouse buttons were giving in…
the new does this not do at all…

Does this mean that you found nothing otherwise.
If so, then there was no virus, only a bad mouse…

Thanks you for your work, thank you so much, Essexboy!