Get a ["LiveCD"] linux distro, open a terminal and type:
mount -o suid,dev,rw /mnt/["hdXX"] (XX = linux partition) chroot /mnt/["hdXX"] lilo
Because you have to reinstall lilo
Fixing The Windows XP Boot Record
Following re-installation of ["lilo"], it may be necessary to apply a fix to the Microsoft Windows XP boot record. Instructions for this are available at the following internet address: