Collision geometry from heightmap

Yes, for me the sound is presently the only problem with 1.8.1 on both the older and newer machines. It doesn’t work at all on either of them, so if I’d opt to use 1.8.1 then I’d have to use some other sound library.

Good grief the graphics card on my old computer is that old huh? Alright when 1.9.1 comes out then I’ll be happy to give it a go on my apparently ancient machine.