Hi, I am aware of the way the maximize button works and that you have to drag a window to fully maximize it. However, on my MacBook Air 11, most of the times (strangely not always), I am left with a small, 1-2mm opening at the bottom of the screen where I can still see the desktop background. I just can't drag the window those 2 mm lower. Very weird, cause sometimes it does work. Also, my mouspointer can't seem to reach those last 2mm either. However, when the taskbar comes up, that one DOES use those 2mm. I have no clue, anyone?