II'd say get the latest drivers, but with a card that old I don't know of the latest nvidia drivers even will install. If you are using the default drivers and have never installed any updated ones, then I would go over to
www.guru3d.com and look at nvidia drivers and get an Official between 27.11 and something below 80. There really is no sense using anything above about the 30s for a GF2 card, but it won't really hurt to go up to the 70s. Anything above that and you are likely just wasting space and time.