There are cases where, as usual, in terms of DirectX. DX 10.1 hardware is compatible with DirectX 10, but the DX10 hardware is not compatible with impatience. Therefore, the games, which support 10.1 DX DX-10 are still an instrument to support today DX10 cards. Remember when Microsoft DirectX 9.0c published, with the addition of 3.0 Shader Model. Furthermore, you are not too much to ask, what SP1 (not the moment). The DX 10.1 SDK recently become available, and until today the support of hardware and DX10.1 be released to end …