After finishing a song, working from the BIB external drive, I had to eject it to make room for other peripherals. A couple of weeks later, I plugged it back in and all my Real Tracks were N/A, even after trashing the "locations" file and resetting the preferences. I tried trashing BIB in the Applications folder, reinstalled it, but installed the Real Tracks and Drums on an internal SSD. (My Mac Pro has 4 internal drive bays.) Tried again. N/A. Trashed the "locations" file and reset the preferences, which show up in blue with the correct location. N/A. What do I have to do to get this to work?