🚀 go-pugleaf

The problem of the mouse cursor going up but not down seems common.  I've
had it lately.  The usual cause is reported as being a broken cable:     
replacing the cable didn't help.  Since at that point there was nothing to
lose by breaking the mouse completely, I tried adjusting the up-down
encoder positioning screw (open the case and you can't miss it).  A quarter
of a turn at a time.  For my mouse, one quarter turn counter-clockwise did
nothing, but the second quarter turn fixed the problem.  I'm still going to
replace it, but now the situation is a lot less urgent.  Hope this helps 
someone.                             Steve J.