If it's a false positive then delete my vote/comment, sorry i didn't know where else to ask that.
Thanks for the answer, btw.
I'll try to see if i can't exclude the check on that (i'm using microsoft security essentials, but i'm not sure if it has that option)
In fact, i wanted to replace the appearance for npcs, not my character. For my character i replaced with an overwiting version (by dropping the frames on the art/critters) with the appearance i like. The only trouble for that is that it appears that some frames for the characters appearances...
I was, of course, referring to the appearance id. It's unnerving that your character looks like any other random dude. So, since there *is* the nmmaxx appearance (used for raiders mostly) i wanted -at least- to replace to those who have instead hmmaxx.