Xubuntu draft documentation - please help review

[Daniel Urban]

Hi,
I also found a strange thing:

Here: http://doc.ubuntu.com/xubuntu/lock-screen.html the documentation
says, that one can lock the screen with "System->Quit...->Lock Screen"
As I see there is no such thing that System -> Quit. There is
Applications -> Quit, but there is no "Lock Screen" option, just
"Switch User", "Logout", "Restart" ...

There is another option in the documentation, the Ctrl+Alt+L shortcut,
but it doesn't seem to work for me.

The last option in the documentation to lock the screen is the Lock
Screen button in the panel. I was able to add this button to my panel,
but it didn't work. (So I was unable to lock my screen at all, none of
the options in the documentation worked.)

So I think this part of the documentation may need to be modified.
(The last two options may be just my problems, but the first is
definitely need change.)

Thanks,
Urbán Dániel