Hi, i want to go back to a privious version of my as i am noticing bad flickering issues on sims 3 with an ati radeon hd 5700 series, i uninstalled the driver from the device manager but that got rid of my card and in safe mode there were no options for trying to detect my card, so when i downloaded the ati software for drivers, the display drivers were not appearing, how do i do this please?