So, I am not sure how, but the long skinny UI window that had several buttons on it, as well as your EXP and Money has disappeared. I think it's referred to as the Menu Bar in Interface Elements (which I don't know how to access without the menu button which is gone because the whole menu bar is gone). The window is horizontal and from left to right is shows your experience, your money, Journal button, Map button, Warmap button, attribute button, inventory button, skills button, spells button, styles button, group button, performance meter, and the menu button. When I asked about it in chat, other people noted that it had disappeared for them as well and they can't figure out how to get it back.

I would like to know if there is a keyboard shortcut I can use to bring up the Interface Elements window.