Domain boxes show up in cycles render So I recently made the switch to cycles rendering and smoke modifiers, but it's been giving me loads of problems already.

This is what the model looks like:


And then when I go to render it, this is the result I get.



Why is this happening?
It looks like you have a diffuse shader assigned to the surface of your domain.  Make sure that there is nothing (or a pure white transparent shader) plugged into the surface socket on your domain object, and that the smoke nodes are plugged into the volume socket.