Hi I have a Seagate Free Agent 150GB External HD that connects to my Ibook G4 through the two USB ports it has. So wanting to be able to listen to music from my External HD and be able to upload music from the External HD to my Ipods, I got a USB port hub. However, when I plug the USB Hub into the usb ports and plug the External HD into the port, it doesn't read it. I was just wondering if this is an issue with the Seagate HDs or is it my USB Hub, or if their are any other options? Thanks.