Hmmm, I have this problem. Hand consistently stuck in an out-stretched position. When I am holding a weapon, the weapon is pointed sort of downwards (though I can still shoot straight. I have quite a few mods installed. Now, I tried doing what was suggested, but... I am not a mod-creator, so... my knowledge level may be a tad too low. I installed Blender and that Ni-program, and I did see a double file (named 2 at the end) in the 'my body' folder, tried renaming that (simply through explorer), which didn't solve the issue. Not sure how or where I can rename these things in those other programs. Any help would be appreciated... if you can stomach explaining this to a less knowledgable person.