Thanks houdel for the help!
Unfortunately, the laptop keyboard does not have a Numlock or Scrolllock key. I tried to use a wireless external gaming keyboard which does have those keys but since I can't get past the bios, it never loads the drivers for the USB receiver.
Thanks anyway.... I keep looking and trying stuff but still nothing works.
This has become more of a personal challenge than just trying to resuscitate an honorable old laptop to working status again. Now I want to see this old Dell cracked laptop screen smile again.
Thanks again to everyone for all your help!