How can I use XFCE to instead GNOME

[Mike Zang]

> Someone may come along to correct me for the specifics of VNC, but in
> general, if you're logging into GNOME using startx, you can just make
> your ~/.xinitrc run 'startxfce4', or you can run startxfce4 from the
> command line, or switch sessions from your display manager (e.g. GDM)
> if applicable).
My laptop is not in x mode, but I want to run in xfce in vnc client, I can
run in GNOME, it is no any problems, but when I change to XFCE, there is no
x displayed, only VNC showed.