Metacity, Ubuntu's window manager, comes with the buttons to close, minimize and maximize the window over on the left,
OSX-style by default (since Ubuntu version 10.04). Many users convert from Windows to Ubuntu, and prefer the buttons over on the right,
Windows-style. Changing the location of the buttons is actually very simple. To move them back to the right, simply open Terminal and enter:
gconftool-2 --set /apps/metacity/general/button_layout --type string menu:minimize,maximize,close
To move them over to the left, enter:
gconftool-2 --set /apps/metacity/general/button_layout --type string close,minimize,maximize
The 10.04.1 version of the script contained this code, but since the script is run as root the command does not execute properly and did nothing.