Y'know, I should have mentioned this by now, but I haven't, because I thought maybe I was imagining it somehow: I have several alt.-dep. materials I've made which are very similar to each other and are made to be applied to separate terrains which increase in height,through distance, though joined. Often I have to re-apply the material I want to each newly created terrain, because the new ones want to take over the characteristics of the lower altitude, previous ones, which results in Vue "forgetting" the altitude settings on the one which came first. Usually I can correct it by re-applying the saved material, but sometimes I have to change materials and THEN re-apply. Oh well, if what you're talking about is similar, I'll be OK, since I already have learned some of the stupidity strangeness inherant in the material editor. Like Bill says, "Vue funny sometime." ;)