Triple-boot between Slackware, Ubuntu & XP w/ grub in the MBR. The entry for XP is messed up, yielding grub Error 13: 'Invalid or unsupported executable format'.
title Ubuntu 8.10, memtest86+
# This entry automatically added by the Debian installer for an existing
# linux installation on /dev/sda1.
title microShaft (on /dev/sda1)
NVM! (hd0,0) is the first partition! I was trying to boot swap (hd0,1). Doh!
NPCs of Cyrodiil beware, for something wicked your way comes.