Sometimes it is necessary to put restrictions on users, if you have a computer to the public or used by many people. For example a library, we can not allow anyone to put their taste or change certain settings. In your Gnome desktop environment there is a tool called Pessulus that will control these profits
Release of version 2.26.2 of GNOME was announced on May 20. This is the second update to GNOME 2.26. It contains some important bug arrangements that directly affect our users, updates the documentation and also a large number of updated translations. We thank all contributors who have worked hard to deliver these changes in time.
I find looking at a white background and black text a little daunting in Gedit, however in Ubuntu 7.10 (Gutsy Gibbon), you can easily change colour schemes and save your eyes. To change schemes:In Gedit Go to Edit –> Preferences.In the Preferences dialogue click on the Font & Colours Tab.Then choose a scheme to suit