hi guys, recently going through a pile of laptop hard drives, on some when "smart" is enabled in the bios i get an arror message on boot up... message says "hdd bad, backup and replace, press F1 to continue"... however when i press f1 and continue the drive lets me fdisk it and scan it for bad sectors but theres no bad sectors on it.. anyone any idea of what causes this? or maybe a possible idea how to fix it?... BTW if i disable "smart" in bios setup i obviosly dont get this message and the drive is usable without interruptions... also on some other drives i get a message immediately saying "primary master disk drive error, press f1 to resume"... any thought or ideas are welcomed, thanks guys twista