uninstall the nvidia drivers and then use driver sweeper to get rid of the left over crap. then get the latest drivers from the nvidia site for your card, then install them if that does not solve your problem try uninstalling farcry delete all files left by it and do a registry scan. then try to install it again. there is a couple of patches for farcry but i dont think they are for compatability of graphics cards. for more information you could try the farcry tweek guide on www.tweakguides.com. let me no if you get the problem sorted.