Wel, I just gave it a try, nad Vue won't export boolean-unioned terrains-- they have to be separate objects. Also, even when spaced apart and exported separately, they import into Bryce and Poser on top of each other. In File-Options, there's a box to select to make IMported objects import in the world-space position they were in on export from other programs, but no such thing for the EXport options. So, I guess you'll have to reposition them on your own. One other thing-- Vue terrains export very well, but you'll want to Lower Edges for each one in the terrain editor first, and probably also want to remove some of the polygons around the edges in LightWave. I've used Rhino for that, and it helps, really, especially for a scene with very clear water, where you don't want to see the square edges.