Judging from the shaders, this is a very old product. Any tips on how to adjust them to get rid of the gray streaks I'm getting (Poser 11 Firefly render) ?

Here's the Material Room settings:

I used Snarly's SceneFixer to adjust the gamma correction on the trans map and adjust the texture filtering, but it didn't make a difference. I tried everything from crisp to none for the texture filtering (the default is Quality). I've also set the shading rate as low as .01, and it didn't help.

What am I doing wrong?