grub no timeout

[Antonello Piemonte]

Hi

we have a system running RHEL 4.3 x86_64. When booting up, the timout from
the grub menu is gone. Here is the grub.conf

# 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/sda2
#          initrd /initrd-version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Red Hat Enterprise Linux AS (2.6.9-34.ELsmp)
        root (hd0,0)
        kernel /vmlinuz-2.6.9-34.ELsmp ro root=LABEL=/
        initrd /initrd-2.6.9-34.ELsmp.img
title Red Hat Enterprise Linux AS-up (2.6.9-34.EL)
        root (hd0,0)
        kernel /vmlinuz-2.6.9-34.EL ro root=LABEL=/
        initrd /initrd-2.6.9-34.EL.img

# rpm -q grub
grub-0.95-3.5.x86_64

any idea why/how this could happen?
thanks
antonello