Hmnnn

 No problems here with PPro2010 on a MacPro OSX 10.5.8. I've rendered several scenes and been using V4 clothes scaled to 0.93. I've not tried ANY "S4" textures- since I have numerous V4 textures that look just fine.

 Lessee, I just rendered S4 with Danae Rio textures with IDL, VSS3, and BB's envirosphere.

 I am breaking the "law" by using the same HDR image with the envirosphere and IDL AND the same image with IBL. So WRONG!! :-) I would show it butRio uses the same texture maps for color/diffuse AND bump- I remembered to fix that for the face-but forgot the lip. The problem is the grey pencil look for the lips.Since I fixed the face node- at least her eyebrows are not grey pencil.

 About to hit render again after fixing that....

  I know, I know IBL and specular light ONLY. It's the LAW! :-)

  Off topic- thanks again for the Light Meter Prop BB!