i've got a pentium4 with windows xp, 2.8ghz, 256mb ram and 40gb HDD.... the works... the only problem i have is with the graphics card. When the installation was complete, the graphics card installed was sis 315, but the card i have purchased and connected is nVidia GeForce2 MX400 64MB TV DDR. I installed the drivers from the cd that came with the card. Still, when i run Halo, it says i have an Sis card with 8mb memory... i downloaded the drivers for sis315 from the sis site but then Halo sez i have 16mb memory and the graphics are choppy... also, when i boot it sez i have an ATI radeon 7000 bios... so ultimately what graphics card do i have? and where can i get the right drivers? the nvidia site is no help at all. what version of nvidia drivers do i need for geforce2? Please HELP!