I'm trying to share a Western Digital My Book through USB on an iMAC running OS X 3.4 with a G5 running OS X 3.5 on the same connection (through router). Problem is, while I can see the hard drive and files on the iMAC, I cannot see the My Book external hard drive. I also cannot find an option to share it from the iMAC. I've enabled file sharing on both machines and still can't see the Drive. Any help is appreciated.