Modified Textures not displaying as they should

[Dart3145]

I'm currently working on a modified .44 Magnum and I'm having issues wit the textures displaying in game oddly, more specifically having dark color areas and bright chrome areas. I'm not exactly sure what it is, whether its an issues with the modifications I'm making to the textures or if its an issue with the encoding on the new .dds files.

 

 

here's the vanilla .44 Mag it has the uniform dull gray.

 

here's my retex you can't see the change as its on the grip of the gun, but the dull gray is gone to be replaced by a dark blackish color and the light patches are a reflective chrome color.

 

Basically I just need help identifying where exactly the problem is and how to fix it.

I'm using Adobe Photoshop CS5 with the NVIDIA DTX compression plug-in and the NV Geck as well as the FNVEdit.