I have a My Book Live and I linked it to my Windows PC first and then to my Macbook Pro second. I was able to transfer files from both computers and I was please with how easy this could be done. I then went on holiday for two weeks. On my return I am now being asked when I try to connect to the My Book with the Mac for a password, which I did not enter on set up. I can only join as a guest and not the registered user. Is is because I use the PC to set up first ??? This is most annoying. Should I reset the My Book, will this solve the problem??