title: Lighting issue in OpenGL
body: <p>I have trouble developing an OpenGL application.</p>
  
  <p>The weird thing is that me and a friend of mine are developing a 3d scene with OpenGL under Linux, and there is some code on the repository, but if we both checkout the same latest version, that means, the SAME code this happens: On his computer after he compiles he can see the full lighting model, whilst on mine, I have only the ambient lights activated but not the diffuse or specular ones. </p>
  
  <p>Can it be a problem of drivers ?(since he uses an ATi card and I use an nVIDIA one)
  Or the static libraries ?</p>
  
  <p>I repeat, it is the same code, compiled in different machines.. that's the strange thing, it should look the same.</p>
  
  <p>Thanks for any help or tip given.</p>