In gameAnti Aliasing doesnt seem to work.
 

Ive tried all setting and off you can see a heck of a lot of jaggies and 8 X you can see a lot of jaggies, is there any way to use Nvidia control panel to get everyting looking sily smooth?

Yeah AA is a massive need! the ingame AA works a little, but not very much at all.

The AA is not complete... if you turn off AA the game turns back in time 10 years :)) ...without the FPS gain...

yes, there is for me no difference in performance and nearly no difference in visuals, set AA to 8x or off.

Ive tried all the drivers below and also setting AA and AF in the Nvidia CP -

260.99
263.09
266.58
267.91
270.51

No noticeable AA working, sure difference between off and 8X but not silky smooth lines with no jaggies.

no better results with latest beta 270.
A small test, external view, paused game:

0xAA =115 fps no effect lol
2xAA =100 fps littel effect
4xAA =100 fps no difference to 2x
up to
8xAA =100fps no difference to 2x

i think 4x msaa is the max the game allows. after setting the aa to 8x, i looked into the conf.ini file and it reads 4x msaa.

so this is probably the reason.

Anyone had any success using nHancer rather then the in game AA ?

http://www.nhancer.com/

8X Q and 16X Q in the nvidia control panel improve the picture alot. It's about a 10-15fps hit though.

you can test AA when you start instant flight over water, then pause the game with "p" and go to external view with "F2". After a couple of testing all variants/combinations of nvidia control panel settings (8xQ, 16xQ, 32x, multisample, 8x supersample and so on..) and ingame 1x to 8x there is only an effect on 1x ingame. The rest does no change in aa-quality.

@atheelen
with nhancer i have no good experience. Too much registry chaos for me.