These frames may be resized to your liking. If you hate frames, you can get rid of them by clicking on "NO FRAMES PLEASE" in the little box on the top left, which I call the "menubox". (Note that the title page would then reload itself, so if you're half-way through the thesis, you would lose your place.)
The "menubox" on the top left provides a quick way of viewing specific parts of the thesis, without returning to the table of contents.
Notes and references will be displayed in this box at bottom. You can toggle between notes and references by using the menubox.
All other text will be displayed in the main box above right.