I think my question is too noobish for anyone to help.  I went on to reinstall Mach3 and chose the default of not using a 3rd party controller.  This time, drivertest.exe appears.  Went on to run the program after rebooting.  It ran without problem.  Next is to learn how to interpret the result.
I'm using a notebook on vista with no parallel port.  Will be ordering smooth stepper given the cost as compared to my original intention of having a CNC Brain.  CNC Brain seems a wonderful product and Bruce and those in its forum are really nice and helpful folks.  I promised myself to definitely own one when the situation is more stable next year.  Job security is a major concern.
To folks using smooth stepper on laptop with Vista, is there anything I should look out for beside disabling speedstep, power saving feature, etc?
Any help/suggestions would be appreciated.
Thanks,
Wong