This is caused by moving the Windows entry into the Debian section of menu.lst, which is altered when grub-update is run. This is not a bug. This bug should be closed. Sorry.
-- Grub menu altered incorrectly by kernel update https://launchpad.net/bugs/52743 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
