I installed Mach 3 on my IBM X31 land an older HP aptop and it works perfectly but when I install it on my dell and T41 laptop it doesn't work. I cannot use hot key to move the axis. I also try to use the built-in wizard feature to generate some gcode and run it. Still it won't run...(the X Y Z axis numbers were not changing) Yes I have cleared the reset and I just don't know what's wrong with it