Removing old graphics card drivers...?

[gypsymoth]

I have to remove the drivers for my present card (nVidia 6800) before installing the new 7900.
The Install Guide tells me to use XP's Control Panel Add/Remove but I think I read somewhere that this is not thorough enough...?    I cannot find the topic I read so I'm asking here....is XP's Add/Remove programme adequate?  
Thanks,
TW.

[luke]

Google one of these:-

Driver Cleaner Pro from   http://www.drivercleaner.net

Driver Dedonator Nvidia     ??
   

[gypsymoth]

Thanks luke!