In my first post about Linux on the Medion 8800, I noticed that the Debian/unstable drivers for the NVidia card wouldn't load, bailing out with the error message Unknown symbol register_ioctl32_conversion. Using the experimental nvidia-7676 drivers, everything compiled nicely, and the module loaded without any problem. If X.org refuses to start, spewing out a message about not being able to find the module, that's because you need the nvidia-glx package.