Strange artifacts in renderings

[gadzooks]

Guys im getting these strange artifacts in my renderings. Can some one shed some light on the situation. Im useing Vray Build 1461070 (advanced). All Materials are vray materials , lights are direct with vray shadows. Here is the image as well as screen grabs of my settings. Any help would be appricated. Thanks gadzooks

[natty]

hi ..

not really sure what im looking at .. have you any overlapping
face's ?

[gadzooks]

natty i checked, and no overlapping faces ,or co planar faces. Is my Subdivisions for the lights or global subdivisons causing it?