Sadly, I can’t turn anti-aliasing on. I can move the slider to the left and to the right, but the value always stays at zero. :-(
I have at least one other game which has anti-aliasing and it works flawlessly there, so I do not think this is a hardware issue.
OS: Linux 3.9.3
Graphics card: NVIDIA GeForce GTX 460
Graphics card driver: the official non-free NVIDIA driver version 319.17 (shame on me, I know!)
Please help me turning on anti-aliasing.