Today I upgraded my laptop and desktop machines to Ubuntu 10.04 LTS. Best upgrade so far. No problems at all.
I'm posting this here for my future reference on how I installed the nvidia driver:
downloaded the driver 195.xxx from nvidia.com
drop to a terminal screen "ctrl + alt + f1"
Kill all instances of X and gdm, "service gdm stop"
and then I had to do "ps -e" to find the remaining X process and manually kill it by it's process ID.
"sudo kill xxxx"
Then edit this file as root:
"sudo nano /etc/modprobe.d/blacklist.conf"
Add these lines and save: (this part is very important, especially the nouveau part, that new driver really screws with the nvidia one)
"sudo apt-get --purge remove nvidia-*"
"chmod 744 NVIDIA-Linux-x86_64-195.36.24-pkg2.run"
"sudo sh NVIDIA-Linux-x86_64-195.36.24-pkg2.run"
after a successful install either reboot or: "sudo service gdm start" or just "startx" if you dont need gdm running.