This is the first time I use a portable-disk to boot the installed Ubuntu.
Some problem occurred, as sound card no work, graphic work abnormal.
http://wiki.ubuntu.org.cn/
Edit the alsa-base.conf follow the example.
Succeed.
sudo dpkg-reconfigure xserver-xorg
then the gnome desktop normal, wallpaper normal.
But after ubuntu logo when boot on, occurred NVIDIA logo.
/etc/usplash.conf
# Usplash configuration file
xres=1366
yres=768
resolve the screen resolution not suitable for the PC monitor.
http://wiki.ubuntu.org.cn/
4 Workstation have 4 different wallpaper, Gnome cannot do this currently.
evolution
The Evolution POP get the mails from ken.h.xia@gmail.com, but Ken.h.xia@gmail POP get the shine7482@126.com
Disable the Ken.h.xia@gmail.com