Deane - just a comment of your Rendo gallery posting....I really doubt you are running out of VRAM. To check, load the "So Over It" scene (the version that worked). There are 3 ways to check memory....1) Use the "Scene Texture Counter" script (in the python "Octane Render for Poser" menu) - this will tell you the total scene texture RAM requirements and texture slot requirements prior to running the plugin. Then 2) click the Image File Statistics button in the plugin - that will also tell you the number of texture slots you have and how many needed. Then finally, when you are rendering , mouseover the bottom status bar - that will tell you the total VRAM used and free. If I am wrong, and you are actually using all 3Gig of VRAM, you can use the "Compress Texture Maps" script to compress the maps to fit in your VRAM. But I would be amazed with 3Gig if you ever need to do that.
Paul