Just wanted to add my $0.02 here with regard to artefacts in procedural terrains. There's no doubt they do occur in Vue 7.4 - maybe not all the time, but they do happen. To demonstrate, I took a 2048x2048 heightfield from GeoControl and applied it to a 2048x2048 standard terrain. I then applied it to a 256x256 procedural terrain. The image in this post shows the standard terrain. The next post is the proc terrain with scale set to 1.0.

Steve