First cycles project - my floor texture previews but does not render

[glyphstone]

Greetings folks, I use Blender 2.70a for modeling for 3d printing quite a bit but this is my first project where I’m attempting to use the excellent Cycles renderer for a little logo sequence.

It previews beautifully but my ground texture does not render.
It previews like this:

but renders like this:

my floor material node configuration

Any ideas what’s not right?
Thanks!

[Richard_Marklew]

Check your render layers are correct
Check you have set the floor to be renderable (camera icon in outliner window)
Check you haven’t set any duplication in the Object / Duplication settings

Supply a link to your .blend file for review