Because djzerious said it works for him on 4x. But im trying to say that either way i set it up.Using direct 3d or just using software it jumps exactly the same way.I would notice it if it had to do with my anitialising.
Are you sure about that? Cuz, my game (using Direct3D, with AA set to "determined by application" doesn't jump. Nor does it jump when it is set to D3D, 4x AA. But at D3D 2x2AA and 8x AA, it jumps.
And, furthermore:
I said that I have the same exact card as you.. I said nothing about power. And I said that MY game is jumpy when I have AA set to anything higher than 4x (and being as how you have the same video card as me, I would think that the issue would be the same..), all I said was that you should try it on 4x AA or leave the AA alone, and it won't jump.
And just because you have a powerful machine, that doesn't mean that you can run any game. Power doesn't always equal quality. And by having that video card, even with your 2.x Ghz cpu, you aren't going to be able to run every game.
Just for the sake of asking for and getting advice, just try what I said. Try leaving the AA alone.. leave it at the "determined by application" setting, and see if that doesn't fix the problem you are talking about. Then if you want, work your way up from there, to a setting that doesn't jump.