Quote - ...but basically any obj can be clothified... 

Sorry to interrupt here, I know this statement is true but I have had problems clothifying OBJ. files these past few days.

I import them into Poser 6 and add them to the prop library so it makes a pp2, or z, or whatever.Only lately they won't do anything in the simulation, except for not draping at all, and after the 10 drape frames I tell it to do, it keeps draping forever, and refuses to simulate. I have told it to collide with the ground, so it's not that. Can anyone help me with this?