Installation interface graphique

Bonjour,
Hier, j'ai acheté un serveur VPS. Je voudrai bien y installer l'interface graphique (le temps de configurer 2-3 truc) et y accéder par VNC. J'ai suivi quelque tuto sur internet mais sans succès.

Voici les erreur que j'ai quand je fait starx

vpsid207:/etc/init.d# startx

X: warning; process set to priority -1 instead of requested priority 0

X.Org X Server 1.4.2
Release Date: 11 June 2008
X Protocol Version 11, Revision 0
Build Operating System: Linux Debian (xorg-server 2:1.4.2-10.lenny4)
Current Operating System: Linux vpsid207 2.6.32-4-pve #1 SMP Mon May 9 12:59:57 CEST 2011 i686
Build Date: 03 August 2011  08:51:41PM

        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Fri Oct 14 13:41:35 2011
(EE) Unable to locate/open config file

Fatal server error:
xf86OpenConsole: Cannot open /dev/tty0 (No such file or directory)

giving up.
xinit:  Connection reset by peer (errno 104):  unable to connect to X server
xinit:  No such process (errno 3):  Server error.
vpsid207:/etc/init.d#

J'ai donc cette erreur en lancant x11VNC :

14/10/2011 13:42:23 x11vnc version: 0.9.3 lastmod: 2007-09-30
14/10/2011 13:42:23
14/10/2011 13:42:23 *** XOpenDisplay failed. No -display or DISPLAY.
14/10/2011 13:42:23 *** Trying ":0" in 4 seconds.  Press Ctrl-C to abort.
14/10/2011 13:42:23 *** 1 2 3 4
14/10/2011 13:42:27

14/10/2011 13:42:27 ***************************************
14/10/2011 13:42:27 *** XOpenDisplay failed (:0)

*** x11vnc was unable to open the X DISPLAY: ":0", it cannot continue.
*** There may be "Xlib:" error messages above with details about the failure.

Je suis sous debian mais je peux aller sous ubuntu ou autre.

Merci d'avance pour votre aide