I'm working on a G4 based Mini. The motherboard has failed, video is doing weird things so I can't see the screen to do anything on that computer. The version of OS X is 10.4.8 as I recall. I removed the drive and connected it to another Mac via a USB adaptor. I can read the hard drive fine. However the user had a login password on her account. When I look at the user folder it shows 0 bytes size as well as showing nothing in the folder at all. For the brief moment I was able to boot the old Mini, the files were all there in tact. I should have removed the password when I was able to boot the thing. I also seem to be unable to boot off this drive from a newer Mac Mini. I have a Core Duo mini that I'm working with to try and recover the files. This Mini is running 10.6.8. When I try to select the external (USB) drive as the boot drive, I am not given that option in System Preferences. Nor when I boot with the Option key held down is the drive shown as available to boot from. Does anyone have any tips or tricks I can try?