Many people ask why hair or clothing shows up as "squiggles" or "point clouds". This is the way that Poser tells you that a transparency map is being applied to the hair. Most all hairstyles use transparency maps to make the hair look more realistic. This is one slight drawback of Poser, anything (clothes, hair, skin, etc), that has a transparency map loaded onto it, looks "invisible", or has a point cloud displayed. There is no way around this, however, once you render your scene, the hair will look normal and you will not see squiggles.