Probably some kind of material node attached to the character for some reason.  In the material room, notice if there are any nodes plugged into the diffuse or specular, or alt_diffuse, alt_specular channels, aside from the maps themselves, and remove them.  The default setup should be just the map nodes plugged directly into the various channels.  If there's nodes between the main channels and the maps, then that's more than likely the cause.

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Tools :  3dsmax 2015, Daz Studio 4.6, PoserPro 2012, Blender v2.74

System: Pentium QuadCore i7, under Win 8, GeForce GTX 780 / 2GB GPU.