Hi, Rusty!
Thank you for your information.......
I do so appreciate your taking the time and trouble to try to help!
I have looked at various links on YouTube and Google.
Unfortunately, none of it appears applicable because I do not have the relevant "bits" on my computer, monitor nor keyboard!
( See previous post 17291 for further clarity.......)
I have neither sliding rule for brightness adjustment on my computer, nor a button on my monitor, nor an "Fn" button on my keyboard!
I appear to be scuppered!
Now.......I have been talking to my cousin, as usual on a Sunday evening...... ........
Interestingly, she has this night - time brightness on her tablet!
But she has the relevant scale with which to alter the night-brightness!
(Another hour before I start getting my little on screen notes........ about how long it will be before I shall "wake up" at 7.30am!)
I am gradually adjusting though to coping with the dim light.
I need a coffee now , after all that talking (the past hour) to my cousin!