That's an alright saikee link there Larry, but this
is the one that should have been posted. Look an task B5 which shows how to use a Live CD. Not sure if the etch CD will allow you to go into Linux rescue mode, but if it does (by typing linux rescue
at a boot prompt), get yourself to a terminal and as root issue command: fdisk -l to see which is your Etch /boot or / partition and issue the four commands below to re-install grub in the MBR, the root command assumes Etch /boot is in /dev/hda2 (first drive), replace with what is appropriate.