Ubuntu是个不错的操作系统，我一直在使用它，免费，安全，自由。Gnome面板有时候会出现错位的小问题，要恢复初始状态也简单。下面的一行命令即可恢复面板至初始状态。打开终端（可同时按住Ctrl+Alt+t三个按键），输入下面的命令回车即可。

gconftool –recursive-unset /apps/panel && rm -rf ~/.gconf/apps/panel && pkill gnome-panel

Ubuntu 10.04 i386经过博主测试通过，其它版本理论上应该没有问题。网上的方法乱七八糟，有感而总结在此，简单有效，正本清源。

English version is as follows:

If you did something wrong with your Panels of Ubuntu Gnome desktop, it is easy to restore it. Press “Ctrl+Alt+t” or “Applications”, “Accessories”, “Terminal”, then copy and paste the following command in Terminal window, press Enter, the default panels of Ubuntu Lucid Lynx Gnome Desktop should be restored.

gconftool –recursive-unset /apps/panel && rm -rf ~/.gconf/apps/panel && pkill gnome-panel

It is tested on Ubuntu 10.04 i386 by myself, for other versions, it should work too.