I am attempting to use my 1 TB MyBook DVR expander for TIVO as an esata drive for extra storage for my computer. I have been using the 500 Gig but it is failing. For some reason, I am unable to initialize this new disk through disk management on the computer. When I right click there is no initialize disk message and I am unable to format it. Does anyone have any suggestions? I am using Windows 7. Thanks,Rick.