My device driver is: xf86-video-intel 2.21.13-1 and I am using the mesa 9.1.5-1 graphics library. These are the newest versions of each. Would you say that it is possible that my mesa is too new? If so, is it worth trying KSP 0.20? I am not willing to downgrade any of my drivers, if you know of an alternative to mesa for intel then I might try that. As I said KSP works on windows 7 on the same laptop where there is less RAM available to the game, so RAM should not be an issue. The laptop originally had 1GB RAM to which I then added another 1GB, which might explain the 2011MiB figure.