Hi,
straight to the point: The typical line break on UI Labels doesn't work. I attached a screenshot of one of your examples named "Example X", running Unity version 3.5.5f2 or 4.1.5f1 and NGUI 2.6.3.
You can see the line break approach with \n in the image, however I searched on the forums and found that one should use \\n now, but that doesn't work either. Encoding checked or unchecked, same result. Please advice me how to proceed further, thanks.