For mysterious reasons, anti-aliasing never worked for me in TDM. Since I hate it when edges make the pixels of my screen stand out, I would like to change this! The menu option is enabled, and r_multiSamples is saved at the value of 4. I have an ATI Radeon 6870 card, and the free video driver for Linux (MESA 11.0.5). FSAA works in most games although there are exceptions, while MESA is configured to do what the application says in this regard.