when I open the cs, and open a cell with npc's in it, this warning comes up

http://i50.tinypic.com/2ntfbiw.jpg

and I get this warning as many times as there are npcs currently in the render window.

It doesn't seem to effect my game in any way, but I don't want to mess anyone else's game up with my mods.

I have seen this before. It's a problem with a faulty animation replacer mod. It replaces the jump animation with a faulty one that has a bone in the controller sequence that doesn't exist in the NPC skeleton. It doesn't cause any problems for your mods, but it is surely annoying. If you want to get rid of the error messages delete the twohandjumploop.kf from the meshes\characters\_male folder. You can also move it to a different folder if you want to keep the animation replacer and put it back if you play the game and don't mod.

it worked, thanks. I think I'll just keep it deleted.