Rendering glitch from 3DM file

 From:  Brian (BWTR)
1361.1 
When trying to render in Carrara I can not seem to cure, after making several modifcations, the visual glitches as shown on the screen shot.
Any help/advice appreciated.
I get the same result with an IWO file save version.

EDITED: 22 Nov 2008 by BWTR