ubuntu11.10经典界面
如果对ubuntu的unity界面不太习惯，可以安装Gnome Classic恢复到经典界面，方法如下：
$ sudo aptitude install gnome-session-fallback Enter
The following NEW packages will be installed: alacarte{a} gir1.2-panelapplet-4.0{a}
gnome-applets{a} gnome-applets-data{a}
gnome-panel{a} gnome-panel-data{a}
gnome-session-fallback libpanel-applet-4-0{a}
0 packages upgraded, 8 newly installed, 0 to remove and 11 not upgraded.
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