When I finished installing Halo Trial and I click play, it comes up with the error that it's unable to intialize Direct3D and that I should run DXDIAG. I have done that and ran all the tests and everything works out fine and on DXDIAG it says that everything is enabled!!! I tried all the troubleshooting ideas it gives but none of them work. Does anyone know what to do?? If it helps it says Machine Info: 1600MHz, 512 MB, 32M SiS (0x0300)