[F9] laptop not booting - reinstall MBR?

[Don Levey]

My F9 laptop won't boot this morning - I go through the POST, but when I 
ordinarily get to the "Hit Enter for options" boot screen, all I get is:

	GRUB

at the top left of my screen.  Does this mean I need to reinstall grub 
and the MBR?  I can access the HD via a liveCD, and everything *seems* 
OK from what I can tell.  Any thoughts?

Thanks,
  -Don