Hi Mike,
You need to go into the control panel and the add/remove programs and then  
remove the ATI drivers and software. Then shutdown and replace the old card 
with  the new one and restart to install the Nvida drivers. 
 
                      Bud Jarman
 
                      

         PCBUILD maintains hundreds of useful files for download
                     visit our download web page at:
                  http://freepctech.com/downloads.shtml