No promises, but you can try this (if you haven't already). Go into your config file, & change your "nvidia" back to "nv", reboot, then try installing the new driver. I couldn't get the new driver to install till I did that. Maybe you already tried that, but I thought I would make sure I posted it anyway
Originally posted by saaz
I have the same "API mismatch" problem and sleeperawaken's solution doesn't work for me. It's still finding the old drive somehow when the kernel starts up.
Using Mandrake 9.2