A cautionary tale ...
I was very happy with my FSX performance (191.07 drivers) then I saw these new drivers (196.75) on offer, no mention of FSX in the Nvidia blurb (they forgot about us long ago) but some impressive claims for other games that I have never heard of, 10% to 30% increase in frame rates.
My head said "it ain't broke, don't fix it"
That little voice behind me said "but maybe it will boost FSX performance too"
Sooo..I downloaded and installed, following all the Nvidia installation rules.
Half an hour later ...FSX loaded, test flight loaded.
I used to get 20 fps over Manhattan, what will I get now ?
Result, 15fps on the ground at La Guardia 04

...take off, turn left, 12 fps, skyscrapers in view 11 fps

, overflying NYC 9 fps.
Lots of fiddling with sliders later ... turned them all down, down down ... still jerky.:redf:
No problem with mountains, weather, autogen, or air and ground traffic. Away from cities I still get 60+ fps but 3D objects on the ground just reduce the whole thing to a jerky slide show.
I'm now looking for the old 191.07 drivers.
My specs:
AMD Phenom ll x 2 550 processor
GeForce GTX 285 graphics
Vista 64 bit
Bob.