I just bought Ground Control, and have the following questions: 1. I tried to load a VistaPro DEM file, but the tops are all sheared flat. Sort of like the demo does. Terregen files are not blocky, so I think it isn't GC thinking its a demo. Any tricks to get VistaPro Dems to load correctly. I'm importing them as Ground Control primitives with full resolution. BTW -- these are dems I created inside VistaPro. 2. Terragen files. I can load these files fine, but when I render, there are trianglar holes in the mesh. 3. Where can I find decent shaders for terrains? I know I will have to learn the shader room now! Thanks in advance, John