Originally Posted by
DarkXale
Windowed fullscreen mode will hide all operating system elements. (Except popup bubbles like when people message you on MSN or try to call you on Skype)
You're thinking of standard Window mode. Theres a difference between "Windowed (Fullscreen)" and "Windowed" mode. When the game has focus, it will 'look' like its actually fullscreen.
But with the benefit that you can watch the game even when for example browsing the web or watching a movie (handy for fishing, especially if you set the movie player to 'always on top' mode since then the game will still accept fish cast and bobber clicks, without me ever loosing sight of the movie).