Hi, I was using the Alps (matterhorn) terrain from BigBen today, and I set it up with some nice surfacing and water, with some misty clouds on the water's surface. I hit the render button and suddenly the terrain disappears and I'm just left with clouds on a lake. The terrain also disappears from the preview render. I can't see anything wrong, render surfaces is still checked and all that. I tried reloading the terrain and, nothing.
i would upload the terrain, but it's too big and you can get it from bigben's forum thread.
EDIT: nevermind, it's back...