There were some fixes recently in Leveller 3.3, from July 23rd onward: - Opening a document when another document was already open would cause view settings to not be read; fixed. Workaround: close any other open documents first. - Adobe Illustrator files couldn't be imported as shapes unless coordinate system was used; fixed (the shapes actually import, but they wind up with invalid positions, making them invisible). - Heightfield surface normals are no longer flipped if facing away from the camera, fixing small dark artifacts during raytracing. Ray