Quadro M 5000 not being reognized

I have renewed my license with Lightworks and upgraded to there iray + for 3DS Max 2018
the activation is complete but the new version does not see any of my CUDA CARDS
I have (1) Quadro K 4000 (1) Quadro M 5000 that I use to render
the Rendering set does not see the Quadro… do I need a new driver
John