CentOS 安装时未装xwindows 现在补装（请教）

大家好：
CentOS 安装时未装xwindows 现在补装，补装时遇到问题，请教
startx报如下错误：
[root@test1 CentOS]# startx
xauth: creating new authority file /root/.serverauth.4678


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 2.6.18-53.1.14.el5PAE i686 Red Hat, Inc.
Current Operating System: Linux test1 2.6.18-92.el5 #1 SMP Tue Jun 10 18:49:47 EDT 2008 i686
Build Date: 24 May 2008
Build ID: xorg-x11-server 1.1.1-48.41.el5
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: Mon Aug 2 19:16:38 2010
(==) Using config file: "/etc/X11/xorg.conf"
localuser:root being added to access control list
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.
Warning: Missing charsets in String to FontSet conversion
/usr/bin/twm: warning: font for charset GBK-0 is lacking.
/usr/bin/twm: warning: font for charset GBK-0 is lacking.
/usr/bin/twm: warning: font for charset GBK-0 is lacking.
/usr/bin/twm: warning: font for charset GBK-0 is lacking.
/usr/bin/twm: warning: font for charset GBK-0 is lacking.
/usr/bin/twm: warning: font for charset GBK-0 is lacking.
界面显示：
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