I am upgrading my G3 500mhz iMac and I just installed a new WD 160GB Hard drive after it only showed 128 GB, and when I mac formatted it still only showed 128 GB. Did I really lose that much to formatting, a whole 32 gig? Its Ulta ata so it should see the whole thing right? no size limitation on the mac side? I do have 10.3.3 installed as well. Any help is greatly appreciated.