Mach3  turn
GCODE executes both axes just fine.
Fast Jog ok on both axes
MPG ok on both axes
Z slow jog ok both directions
X slow jog in - direction ok
X slow jog in + direction no response, no DRO change.

Config hotkeys shows codes corresponding to cursor keys when I push them.
Have changed keyboards.  Have changed PCs.  No improvement

Summary, X slow jog in + direction (right cursor) doesn't move carriage or
show on DRO, all else works properly.

Help please! /and thanks /mark