@mecho

I am embarassed to note that Main Menu/Preferences/Keyboard & Mouse
provides a nice little gui which purports to affect mouse
sensitivity and acceleration. I can't see that it does for the
M$-Nano species of Rodenta, however.

The unplugging seemed to have got the rodent's attention. It
works now in Knoppix about like it does in Win7.

I can't see that any of the choices: xset, gnome config, or this
latest revelation have any effect toward making any changes on
my Nano.

The hunt-and-peck effort toward 'mapping' the mouse dimensions,
mentioned in one of your references, doesn't appeal to me.

Somewhere in my error-message treks I think I recall some note
to the effect that one of the 'dimensions' of the mouse was
unaccounted-for. The number accounted-for was rather large.

No hint as usual as to what one might do with this precious
revelation.