Thanks for that; it turns out I needed it. So my GeForce card showed up much earlier than I thought it would last night! I was so excited I started installing it right away. The first problem I had to solve (other than configuring Xorg for the Nvidia driver) was that I suddenly had no audio... After getting really complicated with my attempts to fix that I finally realized I needed my user to be in the "audio" group. I should have remembered that from setting my laptop up... Apparently people have lots of audio (especially Intel audio driver) problems after installing GeForce cards (HDMI sound does funny things I guess), but I seem OK now. Then I downloaded KSP and started it up (the 64 bit Linux binary). And it crashed on startup. Then it didn't crash on startup until later. Then it crashed on startup earlier. Okay... After looking in that forum thread I tried this hack: $ xxd -s +0x7cebc7 -l 1 KSP.x86_64 07cebc7: 01 $ echo "7cebc7: 00" | xxd -r - KSP.x86_64 $ xxd -s +0x7cebc7 -l 1 KSP.x86_64 07cebc7: 00 $ xxd -s +0x7cebcc -l 1 KSP.x86_64 07cebcc: 01 $ echo "7cebcc: 00" | xxd -r - KSP.x86_64 $ xxd -s +0x7cebcc -l 1 KSP.x86_64 07cebcc: 00 That seemed to cure what ailed me! It has run fine after that so far (if not a bit choppy in the rendering department). After a tutorial on building, I tried to launch the stock Kerbal X into orbit for a while... I spent about 10 launches blowing up since there didn't seem to be any rhyme or reason to how the booster rockets expended fuel. I would see one run out before others, or the two that would run out first did not release with the next stage... Very strange. So I went back to the build stage and looked at the thing for a while until I figured out that the fuel tanks were attached to each other in such a way that they should empty in a certain order, except that the little pipes weren't symetrical at all. I must have somehow broken that while turning the thing about or something(?) So I reloaded the thing and then I was able to launch. After a couple more tries I got into an almost stable orbit. The next thing that is confusing me is why a chute doesn't seem to open and then seems to "blow up" less than a klik above the ground... In any event, I'm off and running. I was up until 2am playing with it. It's gonna be a problem... Cheers!