With textures applied... You know what I do when I have a displacement map that i wana kinda be able to see in the renbder region, but i don't want to have to wait hours for a preview each time a click a setting... No you don't... Well hang on! I'm going tell you... (wow, i've built this one up!)... I just create a normal map out of zbrush and wack it on temporarily to see a preview of displacement... ( bit of an anticlimax isn't chaps?)... well there you go...