This is probably a fairly dumb question but how do I get the Pro Materials to show up in the Viewport - the “Show Standard Map in Viewport” button is unselectable and all I see in the viewport is the color/reflectance...don’t have this problem with A&D or standard materials.

Thanks.

This has been mentioned several times. 

The base Promat can’t show in viewport, but if you add a map to the material, you can make that visible.

I recommend using Arch & Design if you can.  There is a lot more you can customize and adjust to get the right look.

Max Design 2009/2010 64-bit
HP xw4600 Workstation, Core2 Quad @ 2.4GHz, nVidia Quadro FX 1700, 8 GB RAM, Win XP 64-bit
Minneapolis, MN, USA