TGEA 1.8.0 - dynamic Cubemaps - how?

Hi

I'm trying to get dynamic Cubemaps running. My project consists of multiple dts shapes that are created using new classes derived from ShapeBase.

Searched through the forums and tried the things I found, but mostly I got crashes in gfxDevice.cpp as a result (in updateStates to be more specific).

I'll post my datablocks & material definitions currently in use, and would appreciate any help you can give me to get this working.

cheers,
Markus

new Material(floor)
{
mapTo = "floor_diff";
baseTex[0] = "floor_diff";
emissive[0] = false;
bumpTex[0] = "wall_bump";
cubeTex[0] = "$Cubemap";
pixelSpecular[0] = true;
specular[0] = "1.0 1.0 1.0 1.0";
specularPower[0] = 32.0;
ambient[0] = "0.0 0.0 0.0 0.0";
dynamicCubemap = true;

};

datablock FloorData( Floor_plate )
{
category = "RigidShape";

shapeFile = "~/data/shapes/floor/floor_plate.dts";
dynamicReflection = true;
...
};