Sorry for my late to reply.
Well, it seams to be a kind of random problem... The first time I got it I was trying to solve it for some hours and I didn't make it. I had to simulate the IES effect with a standar light and some obstacles in front like a lends.
Today I got back to the same file and I got the same result... no IES lighting correctly displayed and in the FIRE window there is an advise: "AccessViolationException @ CmaxwellRender::startRender()" and the lights are not rendered like IES.
BUT, after close and open de program again, same sceene, same IES, same parameters, the IES are working correctly.
So... I don't have an idea about what happened, why it didn't works first and then it does, or if it would happen again.

How can I send to you the Rhino sceene with the IES files used included or how can I post the pictures so that you can analyse it?
Thank you very much for your support.
