Another friend, not the one who wants the laptop, is having trouble booting up his PC. He keeps getting the Disk Boot Failure, Insert System Disk And Press ENTER error message, but after rebooting several times, it usually fires up. He had the same problem about 18 months ago, and replaced a hard drive cable, which seemed to do the trick, but now it's acting up again. Could it simply be a cable again, or could it be an indication of imminent hard drive failure?