I, too, continue to suffer through this problem with my MyBookLiveDuo. Had a WD Tech Support guy set up my main Win7 machine, which connects with it no problems. When I upgraded my wife’s PC to Win7, set up the network settings exactly the same way, but the only way I can reliably get SmartWare (and QuickView) to see the device is to reboot the MyBook.
Windows Explorer can see it just fine on the network (as do other devices in the house), and I can map shares to a drive from my wife’s PC, but Smartware as backup is not reliable for her. Since I can map a drive, I have an XCOPY backup run multiple times a day on her critical folders.
[edit] Oh, and this is with the latest 2.4.1 code
