Problema /boot/grub/menu.lst

[z3ro <z3ro.2@tele2.it>]

Qualcuno sa spiegarmi perche all'avvio (e in menu.lst) mi visualizza due 
kernel? Vi ringrazio anticipatamente

title        Debian GNU/Linux, kernel 2.6.18-4-686
root        (hd0,0)
kernel        /vmlinuz-2.6.18-4-686 
root=/dev/mapper/d83--190--169--251-root ro
initrd        /initrd.img-2.6.18-4-686
savedefault

title        Debian GNU/Linux, kernel 2.6.18-4-686 (single-user mode)
root        (hd0,0)
kernel        /vmlinuz-2.6.18-4-686 
root=/dev/mapper/d83--190--169--251-root ro single
initrd        /initrd.img-2.6.18-4-686
savedefault

title        Debian GNU/Linux, kernel 2.6.18-3-686
root        (hd0,0)
kernel        /vmlinuz-2.6.18-3-686 
root=/dev/mapper/d83--190--169--251-root ro
initrd        /initrd.img-2.6.18-3-686
savedefault

title        Debian GNU/Linux, kernel 2.6.18-3-686 (single-user mode)
root        (hd0,0)
kernel        /vmlinuz-2.6.18-3-686 
root=/dev/mapper/d83--190--169--251-root ro single
initrd        /initrd.img-2.6.18-3-686
savedefault

### END DEBIAN AUTOMAGIC KERNELS LIST

# This is a divider, added to separate the menu items below from the Debian
# ones.
title        Other operating systems:
root


# This entry automatically added by the Debian installer for a non-linux OS
# on /dev/sdb1
title        Microsoft Windows XP Home Edition
root        (hd1,0)
savedefault
makeactive
map        (hd0) (hd1)
map        (hd1) (hd0)
chainloader    +1