title: Nvidia Nsight 4.0 cannot profile code in OpenGL 4.3
body: <p>I am using Visual Studio 13 with Nvidia NSights 4.0. In my application I am doing a mix of different types of rendering but, for the purpose of testing the proiler, I did a simple rendering of a scene. I opened the graphics debugger and, when I open the GUI and press spacebar to capture the frame I get this error:</p>
  
  <p>Cannot enter frame debugger. Nsight only supports frame debugging for
  D3D9, D3D10, D3D11, and OpenGL 4.2.
  Reason: glEnd</p>
  
  <p>I am using a GT540m and I checked my OpenGL version and it is 4.3
  If I, then, try to use the performance anaysis tool and trace OpenGL (following the instructions) I always get some percentage of CPU frames and 0 GPU frames.</p>
  
  <p>I have no idea what am I doing wrong. Is there any solution to this or alternative ways to profile OpenGL?</p>