I have two 21" monitors at work which I attach to my early 2011 MBP (running 10.8.1) and I move various windows between the monitors. Sometimes the windows coming down to my laptop's screen are larger than it so they fit the maximum height (but are over the maximum width) of my built-in LCD.
I can resize the width of a window by clicking its left or right edge and dragging, but when I try to resize the height, and it shows the up-arrow (or even in the corner where it shows the diagonal arrow), I can click and drag as much as I want but it doesn't resize the height, it only moves the window left and right if I move my pointer either direction.
In other words, the height is stuck when the window is the height of the screen. This only happens when the bottom of the window is at the top of the dock. When windows are smaller than the screen, resizing is fine.
Is there any way to resize a full-height window on my LCD without moving it around then dragging from another corner or something?