So Jennie,
What happens when you mess up this firmware upgrade? My sister apparently took her finger off the power button holding it down in the middle of the upgrade (not sure what part of the instructions this was for...)
EDIT: So, I went to your link from Apple and found out that she has probably inadvertently shut her MacBook down by taking her finger off the power button momentarily, , and will need a trip to the Apple store to cure what happened. If I were there, I could download a restore CD to my computer, but I'm not, and she has Applecare anyway...
She's quite tech-a-phobic... this certainly isn't helping! Beware the slipping finger on the power button in the middle of the firmware upgrade
!
CK