190.16 just hosed my machine.
I tried to install on a fresh Ubuntu 9.04 amd64 setup on my HP 8710w (Quadro 1600m gpu) and now I'm stuck.
Installed latest Wine
downloaded 190.16 to desktop
Quit to cli via Ctrl + Alt + f2
Stop GDM and run installer (let installer do everything, write to xorg.conf, etc
Boom! blank screen. Scrambling to learn how to fix.
sudo /etc/init.d/gdm stop
sudo sh ./NVIDIA-Linux-x86_64-190.16-pkg2.run
sudo /etc/init.d/gdm start