I got the ISOLINUX error message with my (even older!) Thinkpad 380ED. I fixed it by flashing the bios to the newest version.
-- Xubuntu Install CD won't boot after power-up on an IBM ThinkPad 600E https://launchpad.net/bugs/44538 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
