Problem with frame buffer

Just purchased and installed brand new Vray 3 (.10.01) But I can’t seem to get it to render anything useful.

The attached image is the result I get when rendering a Physcam view from a fresh scene with just a box and Vray light. Most times its completely black. Although i can see the buckets flying.
Seems like the frame buffer has an issue or maybe its me missing something obvious?
Tips/hints?

Edit: Never mind! I’m so sorry downloaded wrong version… 3.00.08 works fine.

Having the same problem! Any idea how to fix this with reverting back to version .08 as have installed across render servers

Please check Vlado post here:
http://forums.chaosgroup.com/showthread.php?80692-Vray-3-1-When&p=638609#post638609

The builds have been updated.
Please log in into our website and download install the new one - it should work properly.