I am having a very frustrating problem. RE: 2TB My Book World (white light) edition. Using the supplied software, WD discovery can see the device. I can change device settings when I select configure. When I try to map network device, I get the message " \ MyBookWorld" The network path was not found. Same message when I try to map network drive from computer.The drive is working fine on my other computer. I am running Windows 7 Ultimate. Diagnosis reveals no network errors. The other computer is on windows 7 home premium. Any suggestions?