OK Rita,
Let us know if the green pill toggle will get you back to the standard display when the ESC key lets you down.....I'm a little surprised that the ESC key stopped working for you, as that is hard-wired pretty deeply into the Operating System as a standard. Do you have any third party utility applications running in the background? That's the only possibility that comes to mind for me.....to test for this, you can restart into SafeBoot mode (hold down the shift key during startup - it takes a while) to disable third party extensions. Then you can toggle into and out of Full Page display made to confirm what works and what doesn't.
