Stepper problem

[JAZZCNC]

When you say change the active state in Mach3, do you mean change to low active to low high ?

Yes and also try setting the Step pulse so it's ahead of the Dir pulse. You'll find this in motor tuning.

I am using a male-female cable I bought three years ago. I think it's the correct cable, as it worked fine three years ago :/

Clive answered this for me.