Would appreciate it if anyone could advise me what could be the problem with my WD 320GB HD that does not boot? The light on the ext. HD is on. However, there is no “Open to view folders” when I inserted the USB plug into the computer. Does it mean that “WD My Book Essentials 320GB” does not support WIN7? If so, are there any updated drivers that is available? Many thanks in advance for your help.