A valid OpenCL 1.2 device could not be found?

Just purchased the dForce hair presets by EcVh0 and decided to try my hand a dforce.  I did not see any presets in the presets box after opening DS and when I clicked on the advanced tab, I saw the following message "A valid OpenCL 1.2  device could not be found.  Simulation using the dForce engine is not avaiallbe."  I have a Geforce GTX 960 4gb card installed and is id OpenCL compliant.  I am running DS 4.10.0.123 Pro.  Any ideas what is wrong? Do I have a setting in DS off?  Do I need a driver update?

Thanks in advance