|Make, model, type of PC? |
Your BIOS could be password protected and you may have to unlock the BIOS to make changes, even though you can enter the BIOS.
If not, does your PC have a PS/2 port? try a PS/2 keyboard or another USB keyboard.
If your system appears to be healthy, you may want to try a BIOS update.
MOOOOooove! OH and you're welcome!