Had the demo on my PC for a few weeks and to tell the truth am not too taken with it. Its the being able to skew round the whole battlefield I'm not keen on, its the same as C&C Generals is. I prefered the other older titles because I keep losing half my units as when I move the battlefield around to view from a different angle I get hopelessly lost. It does look good though I must concede. Prefer the original or the Red Alert series.
Nvidia 7600GS it runs perfectly at 1024 x 768 but its just the demo I have not the full game. To be honest I don't think I'll be buying it its the viewing angles that confuse me, my troops are dead before I even know they are in bother so I much prefer the older C&C games. And there are a load of commands that can put me back the right side up but I still get disorientated. I do always try to get a demo before I shell out for a game. I'm replaying Far Cry at the moment and what a beautiful game it is even now after all this time. I've given up on Splinter Cell Double Agent, its the most buggy piece of rubbish I've had for years.
I know that AA will make the card work harder, if you find you have had to drop the resolution even with AA off then you would be better to leave it off. Anti Aliasing rounds things off and makes them more pleasing to the eye click here
Theres no harm in trying it with it on and see what happens, if its too laggy then either turn it off again or try reducing resolution.