Hi Gary,
Sorry to say this but unless someone else can come up with any ideas of how to get the stepper motors to lock (enabled) with that board then I think it may be time to consider a better quality product (such as the Gecko G540) as your controller.
As said in my first post – many before you have tried to get these boards to work, without success.
It may be worth giving the board a thorough visual inspection, checking for poor solder joints or solder bridges even obviously missing components. Also check for damage such as a crack in the board causing possible broken tracks etc.
Tweakie.