I had an eDrive on my external disk, and I went through the documented procedure for removing it (booting into the DVD, etc.) After removing the eDrive, I clicked on the menu bar and was scrolling through in order to restart the computer, but TechTools crashed and restarted.. nothing was running at the time, so I thought everything was okay. Upon reboot, the drive won't load on my computer (i have rebooted a few times already). Neither USB, Firewire 400, nor Firewire 800 work.. but the strange thing is that the drive loads fine on my other laptop (macbook). What could it be? I am running OSX 10.5.5 on a Macbook Pro 2.2 GHz SR (Model Identifier: MacBookPro3,1). Oh, and I tested out the USB ports with my thumb drives and they seem to be working fine with anything else. P.S. oh, techtools wasnt actually installed on the computer.. i had it installed before i upgraded to 10.5, which is why i booted into the dvd in order to remove the eDrive..