I am having a problem with my 6T My Book World Edition II. For some reason it is asking for a password when I never set one for it. How do I find the password &/or get around this? I would also like to know if I can use this as a regular external rather than a NAS & how do I go about doing that? Can the 2-3T drives be used individually or can the second one only be used to backup the first?