Hi, we just purchased a WD Elements 250Gb external hard drive for our eMac PowerPC G4 running 10.4.11. We bought the hard drive as our computer keeps popping up with a message saying "Start up disc out of memory" or something to that effect. When we plug the external hard drive in, the blue light appears on it but the icon does not pop up on the desktop to be able to drag stuff onto it. We have tried unplugging and replugging and we have tried rebooting the computer with the hard drive still attached. Can you please either tell us how to get the hard drive to appear on the desktop or if there is a better way to create memory? Thank you!