OK, so I'm trying to check out Ubuntu, and I'm booting from the Live disc rather than installing because I don't know for sure yet if I want to keep Ubuntu or go with something else. I'm mostly happy with it so far, but I want to test out my hardware and such and I'm having issues with my nVidia graphics card...
I want to test out 3d acceleration stuff and see how well OpenGL programs work with my hardware. So I told the running system (running from the Live disc) to download and install the recommended nVidia graphics drivers from System->Administration->Hardware Drivers and it's telling me that I have to reboot the system. In the past though, when I've rebooted the system I've lost custom configuration stuff such as desktop theme colors and background images and such, so I suspect that rebooting will do nothing for me because it will undo the download/install that the reboot is supposed to complete anyway.
So this brings us back to my initial question (see subject)... How can I save such configurations in order to test this stuff out? Is it even possible to do this from a LiveDVD system rather than an installed system?