3dsmax exporter exporting tangent space incorrectly?

I’ve recently baked a normal map using 3dsMax 2009. The normal map looks fine using the Max’s scanline renderer. However, when I export the model using the max exporter, the Panda rendered normal map is incorrect in several places. Where there should be an apparent cavity, there is instead an apparent protusion on the surface.

Has anybody had problems with this before? Is the exporter calculating its own tangent basis or it it getting it from Max?

Ok. It’s late and I’m stupid. In case this is of any use to other people, the binormal as outputed by the 3dsMax 2009 exporter should be multiplied by a -1 in the shader to get the correct lighting.