Thanks for the example. My isn't working (yet)
This is what I've done:
rt-click Layers_3D---> Properties
Elevation Surface--> Add new Surface. I set my raster as the elevation source. I didn't mess with the vertical exaggeration as my rates range from 0-800; i set the units to feet.
My raster is listed under 2d layers (is the correct? It won't let me drag it to Layers_3d):
rt-click--> properties
Elevation--> set source to my new surface from steps abpve.
And then it just churns.
It doesn't seem to be locked up - I can save the project, click on other menus etc - but nothing shows up in the display and the whirly circle keeps spinning in the lower right corner.
Thanks for the tips! I have direction now and maybe just need to muck about some more.