Ubuntu cannot update ICEauthority Solution

Ubuntu cannot update ICEauthority solves the fault description: during use, the start column and the sidebar disappear. After restart, the graphic desktop cannot be accessed on the logon interface. The error message "cannot update ICEauthority" is displayed when you log on with a customer account ".. The Xauthority owner displays "root". Solution: 1. Delete-rw ------- 1 root 67 11:25, January 1, July 2. xauthority logs on again, and the primary account also prompts "cannot update ICEauthority" 2, copying data from another computer. ICEauthority replaces the current. ICEauthority, and then modify the owner and group, chown user: usergroup. ICEauthority chmod 644. ICEauthority