Ok, so I have a Mac Powerbook G4 15". The harddrive recently died in it and so I just grabbed one from work to put in here. I also upgraded to 1gb of ram. This mac is a 1.5ghz pentium M. I have OSX Leopard 10.5.6 but when I put it in the disc drive, it doesnt automatically start up off of it. The computer starts with, "1,072,300,032 bytes of system memory tested OK" then goes to a screen with "Intel Mobile Calistoga CRB Framework Implementation Copyright (c) 1999-2005 Intel Corporation. All rights reserved. Intel (R) Pentium(R) M CPU BIOS Version: 0.0F, 10/11/05 For Evaluation Purposes Only. It has 6 options to choose from. Continue, Select language, Boot Manager, Device Manager, Boot Maintenance Manager, and View Diagnostic Page. Can anyone help me get my MAC to start up and install OSX? Thank you!