Right click my computer on your desktop.Left click properties from the menu
and system properties will open.Left click hardware then device manager and
then left click the plus (+) next to display adapters.Highlight your gfx
card from the open menu and right click,in that menu click uninstall and
then ok.You dont need to reboot with XP but do so anyway and the o/s will
detect your gfx card and ask for the drivers.If your not sure what to
do,load the disc that came with the card and let it auto run.This should
load the drivers by following the screen prompts.
Good luck