All Iray renders showing up in purple

KyleTwilight

I've been having this issue for a while, and I just haven't been able to find an article or post discussing how to fix it yet.  When I use Iray to render, it always come out in a purple shade.  (Using i13's new iray Modern Barn scene loaded with no adjustments to demonstrate the issue.)  Is this a hardware compatibility issue, or is there a setting I haven't found to get Iray to render in full color?  Here are my system specs:

GPU: GeForce GT740

CPU: AMD FX(tm)-6300 Six Core Processor

Memory: 16GB RAM

Windows 8.1

I've also looked up the drivers for my graphics card and have them updated to the latest drivers I've been able to find thus far. 

Thanks for any help!

Chohole

Thread here   http://www.daz3d.com/forums/discussion/102026/pink-object-after-iray-render

another here  http://www.daz3d.com/forums/discussion/102416/figure-in-rendered-scene-is-purple

with links to yet more.