Hello, While compiling on VC++ a program using ITK, there is this error message: \Insight\Code\Numerics\vxl\vnl/vnl_vector.h(324) : error C2653: 'vcl_generic_iosfwd_STD' : is not a class or namespace name \Insight\Code\Numerics\vxl\vnl/vnl_vector.h(359) : see reference to class template instantiation 'vnl_vector<T>' being compiled May anyone help me? Thank you. Gwenael Guillard