I know its not ideal, but I'm trying to run KSP in 64-bit Linux using VMWare. After all the textures are loaded, the dialog window asking to track game progress comes up, the mouse freezes, and then the virtual machine hangs and dies. But, I don't think it is the dialog window that is doing it, because I went into the .cfg file and set "phone home", "track progress" and "send IP" all to FALSE. Basically the planets in the box that say "loading" move for a moment, then freeze, then the VM dies. It happens when trying to load both 32-bit and 64-bit (via Steam), and is completely unmodded. I tried reverting from .25 to the last stable beta, and the same thing happens.