There are the suppressive effects that disappear nothing else?
It depends on your video card. For some people AA kills only the suppressing shaders, some people don't have working bleeding shaders, which work fine for me, and for some others everything works well with AA.
You can always try to force FXAA via your video card settinga or try some external tools like SweetFX to force it, it doesn't look as good as ingame AA but it's better than nothing.
