Glad you got it figured out :)  Now I have a question, don't know if it was talked about before in the original thresd or not. Look at the shadow on the tree in my image. I am assuming that this is something I am doing wrong or lux doesn't like. The leaves on the trees are transmapped planes, and it looks as though lux, is casting a shadow from the plane and ignoring the transmap of the leaves. Is there something I may be doing wrong in poser before I export the scene, or is this a problem with lux? The shadow just doesn't look right.  I am using the lux sun light.

Poser 9 SR3  and 8 sr3
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Processor Type:  AMD Phenom II 830 Quad-Core
2.80GHz, 4000MHz System Bus, 2MB L2 Cache + 6MB Shared L3 Cache
Hard Drive Size:  1TB
Processor - Clock Speed:  2.8 GHz
Operating System:  Windows 7 Home Premium 64-bit 
Graphics Type:  ATI Radeon HD 4200
•ATI Radeon HD 4200 integrated graphics 
System Ram:  8GB