Thanks,
I have updated the driver but still same problem. I have removed trees for photon mapping. I will check with CA tech support to see as well. But thanks for feedback.
Since everyone was so helpful...I am working on a 3 story + rooftop deck structure. It is obviously very tall, and I am wondering if there is a way to change the ray trace to portrait vs. landscape. I have alot of wasted space on the side in landscape orientation,
As well, any tips to flesh out the background. The terrain kind of just ends. I added in a pic from google maps of the location, but thought there may be more that I could do, I just feel like these could look more realistic. They seem kind of flat...
Thanks!