2 hard discs

[norman]

Everything worked well until now. Having just updated Ubuntu 7.10, which
included a new kernel the entry for Windows in the start up menu has
disappeared. I checked in /boot/grub/menu.lst and, sure enough, the
following was no longer there:-

title Windows XP root (hd1,0)
savedefault
makeactive
map (hd0)(hd1)
map (hd1)(hd0)
chainloader +1

This was re-entered and, success, Windows was back in the start up menu.
The problem now is that root (hd1,0) is no longer recognised. Could some
kind person, please, tell me why this error is now there and what to do
to put things right.

Norman