It seems quite a few shipmates are having trouble with AA. I have been asked for my Inspector profile many times, so here, with the aid of screens are my settings. These are both NVidia Control Panel, and Nvidia Inspector elevated settings.
For those who would prefer the *.nip file, it can be found here;
http://www.mediafire.com/?d77o69u8wab47
A quick word about both Screens and the .nip. They are settings that include SLI use. If your rig is not SLI capable just change all settings under section 6:SLI to AUTODETECT.
If you would like previews of what this looks like in game check my screenshots in the Unofficial "Official" S/S thread.
Hope this helps those having difficulties.
Best regards.
Fubar