I am running a G5 Dual 2.5 and OS 10.3.8. Prior to the upgrade I ran a G4 733mhz with OS 10.3.8. When I wanted to boot from my LaCie external hard drive (both through the startup disk option in system prefs, and holding down option at startup) it would boot the OS I installed on the drive no problem - I believe the ext. Drive is running OS 10.3.4. However, whenever I try to boot from the ext Drive on the G5, it causes a kernel panic during the white apple screen. This happens consistantly so I am convinced it is caused by the ext. drive itself. What is odd is the G5 will panic even if the LaCie is just plugged in at startup, I don't even have to be booting to it for it to cause a kernal panic. This could be a problem if I want to reimage my computer at any point. What do you think might be happening?