Hi, both the applications you mention are installed with the driver.
They are accessed via the command line (cli) interface as root for the whole system.
nvidia-settings may adjust the settings per user as user.
If the driver is not loading, check /etc/X11/xorg.conf
look for these lines....yours may be different, but similar....
Code:
Section "Device"
Identifier "Device0"
VendorName "GigaByte"
BoardName "GigaByte GeForce 9800gt (GTX+)"
Driver "nvidia"
Option "DPMS"
VideoRam 524288
#Option "RenderAccel" "True"
EndSection
the entry may be vesa, vga, nv or similar,
to use the installed nVidia driver module change the line to read....
You need admin access(root) to save changes to this file.
Restart x to see the changes.
Now you may be able to use the apps that come with the driver to configure your graphics card.
Note! It is generally accepted to comment(#) unwanted lines so they are not read.
Inserting new lines makes it easier to quickly edit files in cli mode, like with vi.
Hope this helps.
Regards Glenn