i have an emachines desktop computer that runs windows vista home premium with service pack 2 32-bit operating system. The Processor is an Intel(R) pentium(R) D CPU 3.00GHz 2.99GHz. the origanal display adapter is an Intel(R) 82945G Express chipset family. A few years back when the Sims 3 came out the computer couldn't handle the game so i called EA games support and they told me I needed to upgrade the video card. I bought a geforce video card (not sure what one) and power supply. They worked real well for some years but now when i click the control center it says the computer could not detect the device. The computer went back to running the original display adapter. What i want to know is how do i get the g fore video card back working?