I have a powermac g4 and I loved it to death until the hard drive crashed. I bought a replacement w/ more gb to upgrade since I had to replace it anyhow. The hard drive was blank and I tried putting in the osx disc but it does not load. It goes to the same screen my bad hard drive did, the blue screen with a flashing question mark folder icon. I took a smaller hard drive out of my moms g4 and it worked perfectly in the machine I'm trying to fix..... So I know it's def only a bad hard drive..... My question is how do I format the new hard drive if the disc won't run (even tried holding c on start up w/ no success). Or is this hd bad perhaps too? Help! Any help would be greatly appreciated!