I'll try to make this short... I've been in the process of installing WinXP onto an external USB drive to be used on my MBP C2D without installing ANYTHING on my OSX internal drive or partitioning. I've come a long way with tools from some very slick, resourceful people on the net, the sticky guide from the forum and my own personal obsession with this. This is where I am right now: - I've made a USB installable WinXP disk with this guide - I did install Boot Camp 1.1.2 to burn my driver disk, thats all. - I've boot to the XP disc then been able to begin the first phase of installation of XP, but when I reboot I am unable to boot to the windows drive to continue installation. Hitting Option -- or Cmd-Option-Shift-Delete doesn't work, also going into the OSX's Startup Disk option in System prefs. and selected the Windows drive doesn't work, it just sits there on the reboot. - So I came across rEFIt - great tool, I decided to install it to a spare USB thumb drive (a suggestion from the site). rEFIt comes up, I select the windows USB drive, the gray windows logo appears then... I get this error Booting Legacy OS Starting legacy loader Using load options 'USB' Error: Not Found returned from legacy loader Error: Not Found from LocateDevicePath [......above error 13 more times.....] Error: Load Error while (re)opening our installation volume (Tried rEFIt on a cd and that got rid of this error) I know it could be that fact that I'm on an external drive... or it could be that Im running from the thumb drive, but I feel it has to do with the MBP C2D firmware. I've read people with other models have gotten this to work and other people with this model have reported similar problems, plus the firmware was an issue with the MacPros for a while... So... any suggestions? I fear that an update to rEFIt is whats needed here, but I could be wrong. Any help would greatly appreciated, like many, I've lost lots of sleep over this! THANKS!