xp,centOS 멀티부팅시 xp부팅 안되는문제

안녕하세요.
현재 한개의 하드디스크에 2개의 파티션을 나누고
xp를먼저 설치한다음 centOS.5.x를 설치하였습니다.
그리고 부팅하면 멀티부팅 화면뜨고 centOS는잘 들어가는데
XP로 부팅이안되고 검은화면에 멈춰있는데요. 해결방법 부탁드립니다.
-아래는 fdisk내용과 grub.conf내용입니다.

[root@skchoi ~]# fdisk -l

Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 38245 121602 669559808 7 HPFS/NTFS
/dev/sda3 14 11965 96004440 83 Linux
/dev/sda4 11966 38244 211086067+ 5 Extended
/dev/sda5 11966 24974 104494761 83 Linux
/dev/sda6 24975 37983 104494761 83 Linux
/dev/sda7 37984 38244 2096451 82 Linux swap / Solaris

Partition table entries are not in disk order
[root@skchoi ~]# cat /etc/grub.conf
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You have a /boot partition. This means that
# all kernel and initrd paths are relative to /boot/, eg.
# root (hd0,0)
# kernel /vmlinuz-version ro root=/dev/sda3
# initrd /initrd-version.img
#boot=/dev/sda
default=1
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title CentOS (2.6.18-238.el5PAE)
root (hd0,0)
kernel /vmlinuz-2.6.18-238.el5PAE ro root=LABEL=/1 rhgb quiet
initrd /initrd-2.6.18-238.el5PAE.img
title windowsXP
rootnoverify (hd0,1)
makeactive
chainloader +1