I just got an 8800GTS 320mb, and Battlefield 2 only lets me run at 8x, but in the nvidia control panel i have it set at 16x aa, and if i turn it off in the bf2 game, It won't be any aa. I tried to let nvidia control panel force it to 16x but I can't figure out how to.

so the aa just doesnt work at all? and how do you know this, you can just tell that its not as good looking?
try turning off aa in the bf options, then force it with the nvidia cp. maybe they are interfearing with eachother.

Are you trying to run 16x with HDR??
If so I have heard there is a limit with Nvidia cards that will only allow 8x with HDR.
Knowing me I am probably up the wrong creek, but someone will correct me if I am.

bf2 has hdr?...

Sorry I was half asleep.
I really havent got a clue if BF2 has HDR or not.
Dont know what I was looking at.
But do you know if what I heard is right or not??

well my friend has an 8800gts 640mb and i set it up to have oblivion with HDR on and i forced 16xAA and 16xAF thru the nvidia control panel. looks amazing! but i dont think is any way for me to tell if its really on 16xAA or 8xAA... it just looks amazing and thats what really matters.

Apparently everything looks amazing with the 8800 series doesnt it?

it does