Something must have changed in 12.04 because I needed the nomodeset boot option in order to properly boot the live cd - otherwise black screen with blinking cursor. What are the chances of the nomodeset boot option not being required when I install 12.04 to disk, or perhaps being added automatically ? Also will it become unnecessary once the nvidia drivers are installed ? (To add the nomodeset option edit the grub file in /etc/default as follows: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset") OK - all's well. Installed to disk where 11.10 previously resided. Was surprised to see the latest nvidia driver was installed and working on first boot. Looks great and I am a happy triple booter.