If you found the Fix please post it. I am having the same problem, it uses all cores / slaves for first images and after that only main cores.

Yea but still I cant get the effect, not even the map is shown...I am kind of new to this

Have been trying to get a photorealistic look using caustics on vray but cant even get to show the maps on the pool...Is there any tutorial step by step out there, I am kind of a noobie sorry...

I appreciate the help in advance thanks...