What Driver should i install

Sometimes best off starting with latest drivers from Nvidia ( makers of your cards chips ), and your in luck they have been updated today http://www.majorgeeks.com/NVIDIA_Forceware_2K-XP_d3294.html

but these are not neccassarily going to be the quickest, various factors come into play, your system specs and setup...

eg. The above driver may work great for you but not for me and vice versa, its sometimes a bit of trial and error getting the best driver for the games you play and to that end its sometimes best to see what other gamers playing the game you mostly play are using and use that driver version ( it may not be the latest one tho )

but I would in your case start with the above linked driver and see how you go.

 

Try with the ones listed above.