Leather Jacket for Genesis - Can't get the materials to show

Hi there,
I'm new to Daz3d and loving it, I bought the model pack called 'Leather Jacket for Genesis' but I'm having trouble getting to show the materials on the jacket. It keeps showing black.
So if I choose for example red, it still shows black when it renders.
Could someone give me a few pointers?
Thanks
Winton


Screen Shot 2017-02-23 at 8.12.51 pm.png
1918 x 894 - 568K
Comments
When you render in 3Delight you'll see the colors.
Ok. I've done that. I can see the jacket material, but its not showing the genesis character.
What do I do here?
You clear the Brickyard folder in your temp folder.
I don't know what you mean. I've looked for it but I don't know where that is. I use a mac.
I would like to use the iRay rendering to see the material with the character but it won't render it probably. It works with the 3Delight rendering but it doesn't
show the genesis character. It comes out white (as you can see from the image attachment above)