Hi, I have a (really) strange problem : my program stops on the instruction m_pD3D->GetAdapterIdentifier in CD3DApplication::BuildDeviceList No samples from the SDK work (they all stop on the same instruction) But the strange thing is that it works when launching the .exe file (generated by VC++). I dont understand... Do you think it is due to a probleme with DirectX or with VC++ ??