The second service pack for V-Ray for Rhino 2.00 has been released by ChaosGroup. This update is totally free to all owners of V-Ray 2.00 and can be downloaded from the ChaosGroup download section. Registration is required. In addition to other refinements, they have made code optimizations to improve the general performance of V-Ray for Rhino.
Some of the fixes were thanks to yours truly. I am not saying that I played a major role in the development, but I’m a well-known abuser of their software and I’m on a first-name basis with Chaos Group Tech Support.