Hi all,
Great game!
Same problem for me, a little flickering, then it seems like some library crashes.
I've installed 2.2.1 from repository, 1024x768 no fullscreen. I run an Ubuntu 8.04 on Intel Mac Mini, with no desktop effects. In the first days I have experimented with the video options, but yesterday it was impossible to play the game. So I have reinstalled from repository, it was fine for some hours, then other flickering and video crash.
In that situation the system responds, but the screen is blank. with ctrl-alt backspace the graphical display doesn't recover. The only option is to login on console and halt the system.