Comment 21 for bug 570394

(II) Loading /usr/lib/xorg/modules/extensions/libglx.so

You aren't using the nvidia libglx which is most likely caused by how you installed it. The easiest way to fix it is remove nvidia-current (sudo apt-get purge nvidia-current) and then reactivate it in jockey while it is uninstalled (don't install it through a package manager first!). If that doesn't work, you can fix it manually by

sudo update-alternatives --config gl_conf (pick the nvidia option here)
sudo ldconfig
sudo update-initramfs -u
move your /etc/X11/xorg.conf out of the way (sudo mv /etc/X11/xorg.conf /etc/X11/xorg.bak) and run this to create a new one
sudo nvidia-xconfig

If both options fail then please attach your /var/log/jockey.log