I knew you would appear. Thank you. But the problem remains, Talmy.
I click on Systems Prefs > Hardware > Keyboard.
Then check Keyboard and Character viewer box … which does not produce anything in the menu bar. Or, for that matter, remain as 'checked' after I leave the screen.
The only other references on the screen are to Modifier keys and Bluetooth, neither of which are of concern.
I read something in an Apple discussion which suggested this facility is not available in 10.6.8 Snow Leopard. And also a reference to a link from Keyboard to something called 'International' but I can't find that either. I suspect it may relate to other machines than my Imac 2.4.
And I still can't believe that Apple appear to have no need to depict out a legible diagram of the keyboard. I did find a crude drawing of poor resolution under Apple Search, but that's all.
Seems like one long complaint … but the weather is nice here in the UK, I am now 75, though I still use the user name of Seventy One, and Christmas is coming. There has to be something good in the world.
Hope you are well.