On Tuesday, June 1, 2021, 09:39:41 AM PDT, Jonathan Stone via cctalk <cctalk at
classiccmp.org> wrote:
The described behavior is what you'd get in X11 if
the middle-button is "stuck on" (autorepeating) after being pressed the first
time, >and you move the mouse. Not sure if that helps, though.
Supposedly there's an "xev" with Decwindows Motif. Do you have one in
DECW$UTILS: ? Try it (with good mouse first) and see what it reports when the bad mouse
goes bad.
?