threading-model opengl error

Scripting Issues
1

HEllo,

When I activate

loadPrcFileData('','threading-model Cull/Draw')

and because I am using cegui wrapper, I got this error :

    PyCEGUIOpenGLRenderer.OpenGLRenderer.bootstrapSystem()
RuntimeError: CEGUI::RendererException in file ..\..\..\..\cegui\src\RendererModules\OpenGL\CEGUIOpenGLRenderer.cpp(641) : OpenGLRenderer failed to initialise the GLEW library. Missing GL version

Maybe I can’t use threading model, when I use Cegui?