It could be the resizable bar thing if not Nvidia. This one also allocates really large volume textures on the GPU so could be amount of VRAM. I have some new stuff coming out soon that will have better compatibility and use sparse volumes and compression.
oh ok if it it the resizable bar is there a way you can change that? Because the Liquid crystal demo (the one with the jello and water thing not this one) works without me needing resizable bar.
I think it just might be the large amount of memory & VRAM it uses. The simulation domain for this one increased from 128^3 to 512x512x128 (16x increase). I have more compatible/optimized stuff on the way.