If it's an hr2 file you shouldn't have to parent it, it should automatically parent itself to the head. If it doesn't, don't use Figure Parent, use the parent in the Object>Properties menu. Sometimes, hair will fly up into the air if you change a pose. I've prevented that by selecting the hair, then in Object menu, click on Lock Actor. That's helped for me. If you want to change anything about the hair, like change the morphs or whatnot, be sure to unlock the hair first. If it's a hair object from the Character library, but not conforming, select the hair and make sure you select Body, then use Figure Parent. That should help. If you're using a conforming hair, it will only conform to the figure it was created for. For instance, I use Jim Burton's San Francisco Hair on Michael. It was created for Vicki and will only conform to Vicki. It does weird things if I conform it to Mike. In that case, I just select the hair Body and do the Conform Figure function to his head and it stays put. I hope that helps some. Melanie