I've installed the 8.12 drivers in my pc and played Red Alert 3 (Campaign Mode). My resolution is 1920 x 1080 (all settings set to MAX except VSync which was OFF). I noticed that when I set the AA at 8x, after a particular stage in the game itself in the campaign mode, the display will be lag n jerky. If I set it at 4x, no lag or jerky occurs.