a seam, disconnected verts, bad smoothing groups or overlapping faces probably can create this. In TBag / Marmo there is a setting to use 3dsmax tangent space try that?
Does any1 have a idea how to import .dmx into 3dsmax? The .fbx is not working properly ,and I have bad luck following the decompiling tutorials :( . tnx
lots of (non 3dsmax so) FX files here http://developer.download.nvidia.com/shaderlibrary/webpages/shader_library.html few own: http://www.luxinia.de/index.php/ArtTools/3dsmaxFX