Problem with light

I''ve got a problem with the lightsetting in my simple project. I''ve set up a lightpoint. It should be, for example, initially positioned behind the camera. The problem is, when I move around in the scene with my camera class that uses gluLookAt, the light moves with the camera, resulting in that I allways see the model lit in the front. What I need is to be able to place the lightspot in an absolute spot, not one relative to the camera. Greatful for any help! -Lord Maz-