Actually, I'm not so sure I'm running in opposite mode... Check out the attached pic.
You can see that the machine thinks it's at 0,0 and it is. If I turn my computer around 180degrees on the table, it would match the machine.
I'm just wondering if I can do that 180 degree turn on the display instead of physically or does 0,0 in Mach 3 always have to be bottom left. If so, I guess I wont ever match the machine. I dunno...