basti@basti-pc:~/Desktop$ xvncviewer 78.50.???.??:5900

VNC Viewer Free Edition 4.1.1 for X - built Apr  9 2010 15:52:37
Copyright (C) 2002-2005 RealVNC Ltd.
See http://www.realvnc.com for information on VNC.

Sun Nov  7 20:34:13 2010
 main:        unable to connect to host: Connection refused (111)