It sounds like you have no favorite files list.
You must either browse files to see their resources, or add them into your Favorite Files. The process is the same, but you start with different commands. Both commands (Browse a File... and Add new Favorite File...) are found in the menu under the black triangle in the upper right corner of the Browser, next to the files drop-down menu.
It is wise to first browse a file, to make sure you like it and really want it in your favorite files list, then add it to your favs, where they'll be available during each session from now on. Be advised that since the computer has to store a library of these favorite files in RAM when you start the program, it's wise to keep the list short.