This is only from memory.
There should be 2 types, one for AA, and another for something else.
It's a pity I can't remember it correctly.
For your information, I'm not upgrading my drivers for some time, and the catalyst control panel is broken for me.
The last time I updated the driver/control panel it took me 5 hours to correct it to a previous state.
640x480 at 60 Hz isn't nice.