Yafray Reflectivity Problem

Hi all, I am rerendering my Glass Birth image to an AVI camera fly by with Yafray.

The problem is that I have UV mapped a wood texture to the ground plane and applied the RayMir and etc, etc. When I render, the ground plane reflects like a mirror, (i.e. way too reflective), but the material preview looks great.

See what I mean here:


Any suggestions on how to fix this?