problem with rederning poser model!!!
 

Okey here the story:
I imported poser model into maya and edited some of its body part. i deleted the head and added my own head model. everything was going fine untill I started rigging it. After skin binding, i tried creating different poses, then i discovered some of its body part would show up dark as if no light. when i tried rendering it, it would come out dark. Please help me!!!