To hide the icons that show up on the Gnome desktop, launch
and go to apps > nautilus > preferences. Uncheck the box at the right of show_desktop and close gconf-editor.
on 07/15/2009 – Made popular on 07/15/2009
If you used to be a Windows user,you should prefer the Computer,Home,Network and Trash icons on your ubuntu gnome desktop.
Press Alt+F2 key combination,and this window pop up,type gconf-editor to start configuration editor.
I have two installations of Ubuntu 12.04 (One Desktop and one Netbook). They both have Unity and Gnome Shell. On the Desktop, the window buttons (close, maximize) show on windows that are maximized. On the Netbook the buttons only show on windows that are not maximized.