NVidia
Download latest Nvidia driver from http://www.nvidia.com/
Boot to command line. One way to do this is to add an argument at Grub boot loader. At Grub boot menu select current kernel and press 'a' to enter kernel arguments. Add a 3 to end of line and press ENTER.
Disable nouveau Log into system & with root edit /etc/grub.conf by adding rdblacklist=nouveau to end of your latest kernel. Save and exit file.
# vi /etc/grub.conf
Run these commands to verify if you have minimum prerequisite software installed:
size --version make --version insmod --version Xorg --version gcc --version ls /lib/libc.so.6
The default Fedora 14 install I used did not include several of the required packages. I installed gcc which resolved the other dependencies.
# yum install gcc.x86_64
Now reboot system so you unload the nouveau drivers. Enter the boot menu again just like above & add an argument of 3 to end of current kernel line (should be after rdblacklist=nouveau you added above).
Log into system and become root. Enter the directory where you downloaded the current Nvidia driver and type:
# sh ./NVidia*
Follow on screen prompts then reboot like normal.