Well tried NewMode which I have always used and it runs when I select Lightwave and will promote it, although get buttons disappearing, but Modeler fails with the error mentioned earlier.

Perhaps if somebody out there has Lightwave 5.1 they could tell me if it works ok and is worth trying to upgrade or not.

Real shame because GUI of Lightwave on MOS is fastest I have ever seen it and I am more of a Lightwave fan than Blender, as good as Blender is.