giorgos@giorgos-desktop:~$ sudo apt-get install nvidia-settings
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Recommended packages:
  nvidia-glx-legacy
The following packages will be REMOVED:
  nvidia-glx-new
The following NEW packages will be installed:
  nvidia-settings
0 upgraded, 1 newly installed, 1 to remove and 0 not upgraded.
Need to get 691kB of archives.
After unpacking 13.5MB disk space will be freed.
Do you want to continue [Y/n]? y
Get:1 http://gr.archive.ubuntu.com gutsy/restricted nvidia-settings 1.0+20070502-1ubuntu2 [691kB]
Fetched 691kB in 4s (146kB/s)           
(Reading database ... 110184 files and directories currently installed.)
Removing nvidia-glx-new ...
Processing triggers for libc6 ...
ldconfig deferred processing now taking place
Selecting previously deselected package nvidia-settings.
(Reading database ... 110136 files and directories currently installed.)
Unpacking nvidia-settings (from .../nvidia-settings_1.0+20070502-1ubuntu2_i386.deb) ...
Setting up nvidia-settings (1.0+20070502-1ubuntu2) ...