원격서버에서 startx 오류

원격서버에서 startx 오류가 납니다.
로칼은 scientific linux x86 6.1이고 원격은 centos 5.1 x86입니다. ssh로 접속해서 startx를 하니까 아래와 같은 오류가 나옵니다. 어떻게 해야 하나요?

[root@remote-server00 X11]# startX
-bash: startX: command not found
[root@remote-server00 X11]# startx
xauth: creating new authority file /root/.serverauth.19813

X Window System Version 7.1.1
Release Date: 12 May 2006
X Protocol Version 11, Revision 0, Release 7.1.1
Build Operating System: Linux 2.6.18-53.el5 i686 Red Hat, Inc.
Current Operating System: Linux remote-server00 2.6.18-238.12.1.el5 #1 SMP Tue May 31 13:23:01 EDT 2011 i686
Build Date: 20 April 2011
Build ID: xorg-x11-server 1.1.1-48.76.el5_6.4
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 Jan 27 16:51:28 2012
(==) Using config file: "/etc/X11/xorg.conf"
(WW) ATI(0): Failed to set up write-combining range (0xf6000000,0x800000)
(WW) ATI(0): Failed to set up write-combining range (0xf6000000,0x800000)
FATAL: Module mach64 not found.
[drm] failed to load kernel module "mach64"
(EE) ATI(0): [dri] DRIScreenInit Failed
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning: Multiple symbols for level 1/group 1 on key
> Using XF86Sleep, ignoring XF86Standby
> Warning: Symbol map for key redefined
> Using last definition for conflicting fields
Errors from xkbcomp are not fatal to the X server
localuser:root being added to access control list
There isn't profile of 'root'.
Smart Common Input Method 1.4.4

Launching a SCIM process with x11...
Loading socket Config module ...
Creating backend ...
Loading x11 FrontEnd module ...
Starting SCIM as daemon ...
SCIM has been successfully launched.
SESSION_MANAGER=local/remote-server00:/tmp/.ICE-unix/19851
Passkey agent registration failed: Passkey agent already exists

** (nm-applet:19951): WARNING **: applet_dbus_manager_start_service(): Could not acquire the NetworkManagerUserSettings service as it is already taken. Return: 3

** (eggcups:19926): WARNING **: IPP request failed with status 1030

** (eggcups:19926): WARNING **: IPP request failed with status 1030
Initializing nautilus-open-terminal extension
Failed to receive messages at scim_bridge_client_read_and_dispatch ()
An IOException at scim_bridge_client_change_focus ()
An IOException occurred at scim_bridge_client_imcontext_focus_out ()