HowTo: Changing default mouse cursor in Debian

Having just finished installing XFCE4 on Debian Lenny I've came across with X11's default cursor: an ugly jagged black cursor.

Here's the procedure on installing my favourite mouse cursor theme (DMZ-white) and how to change the cursor in Debian with update-alternatives:

1. become superuser
2. apt-get install dmz-cursor-theme
3. update-alternatives --config x-cursor-theme
4. enter selection number for DMZ-White
   

Under XFCE4, browse to Settings -> Mouse Preferences -> Cursor and select DMZ-White.

Logout from XFCE4 to commit the changes, Quit -> Logout.

That's it.