Surface/Object Rendering Issues

[whacer]

Hello everyone!

I am have major issues with Vray rendering any type of surface or object. As seen in the attached images, a simple curved surface is rendering with strange black streaks. The small box is rendering with "stitching" visible. I have tried adjusting all texture mapping setting in Rhino, as well as trying to apply different Vray materials, but nothing seems to work! Issue only appears to be happening in Perspective Views. Any suggestions?

[whacer]

Here is the basic rhino model view of the example!

[Micha]

Since it is a small scene you could pack the scene to a zip archive and post it here.