Originally Posted by Ergonpandilus 
Doesn't anti-aliasing work if you force it on from control panel? Never the less, I don't see need for it in 1920 at 23" screen.
It worked in CP 1.6, but has been broken since 1.7, at least for ATI cards. I play in 1920x1200 on a 24", and the game still looks great without it, but certain surfaces still get those crawling jaggies that I find very annoying.