Displacement Brush crashes Hex

wancow

as does the soften brush, pinch and inflate...

HOWEVER, this happens with imported meshes such as cloths that I need to smooth or Genesis.

It does not happen when I create a mesh in Hex.

I'm thinking I have some setting wrong or something.

I tried un-installing and re-installing hex, but no, same problem. This is a fresh download, so I'm up to date.

Anyone know what it is I need to change? Display or whatever that might have caused it as this did USED to work on Genesis meshes... I've created a couple of morphs using these tools.