I have a Passport which I´ve had for 3 years with no problems. Now I can´t eject unless I turn off the computer. I use the passport to save all my files as I work in a number of different places on different computers and to turn the computer off is a great inconvenience. The error message says that it is in use - but it isn´t. I need step by step instructions as I´m a bit green when it comes to the techn ical language!!