Morning, I've already tried most of the solutions you have proposed and my ksp keep crashing just after loading it. The demo worked perfectly and all the troubles started when I buyed the full game. Version: Kerbal Space Program - 0.21.1.0 (LinuxPlayer) Steam Running on: OS: Linux 3.2.0-53-generic-pae Ubuntu 12.04 32bit CPU: Intel® Core2 Duo CPU T8100 @ 2.10GHz (2) RAM: 4021 GPU: Mesa DRI Intel® 965GM x86/MMX/SSE2 (256MB) SM: 30 (OpenGL 2.1 [2.1 Mesa 8.0.4]) The last 3 lines of the log file. ... [LOG 23:10:41.530] PartLoader: Compiling Internal Space 'Squad/Props/throttle/prop/throttle' [LOG 23:10:41.535] PartLoader: Compiling Internal Space 'Squad/Spaces/GenericSpace1/internal/GenericSpace1' [LOG 23:10:41.541] PartLoader: Compiling Internal Space 'Squad/Spaces/GenericSpace3/internal/GenericS I really hope that something could be done ! Txs