i have an ibook thats been sitting in its box for a few months because the hard drive went, it was my sisters, and i thought nothing of it as far as repair. the other day i found this link: http://www.sterpin.net/uk/ddibookg4uk.htm and decided to give it a shot. when i got to the hard drive itself, the motherboard connection had unattached itself. i figured it was an easy fix. i re-connected it, re-assembled, but the ibook still wont boot. when attempting a fresh install the hard drive doesnt show up. i can hear it working/it sounds fine. any ideas on getting it to boot?