A virus messed up the colors in my graphics in my Dell Latitude D620 laptop. My video card is NVIDA Quadro NVS 110M forceware version 174.31. I got rid of the virus but the colors in my graphics did not go back to its normal color. I downloaded and installed the driver for my video card but it did not change the color and appearance of my graphics. what must I do to fix this problem? HELP!