$ dpkg -l xfonts-base|grep ^ii
ii  xfonts-base    1:1.0.0-4      standard fonts for X

$ vnc4server :2 -cc 3

... vnc4server logfile: ...
Xvnc Free Edition 4.1.1 - built Feb 26 2007 20:43:44
Copyright (C) 2002-2005 RealVNC Ltd.
See http://www.realvnc.com for information on VNC.
Underlying X server release 40300000, The XFree86 Project, Inc


Tue Jul  3 20:58:37 2007
 vncext:      VNC extension running!
 vncext:      Listening for VNC connections on port 5902
 vncext:      created VNC server for screen 0

Fatal server error:
could not open default font 'fixed'
xsetroot:  unable to open display 'raider:2'
vncconfig: unable to open display "raider:2"