Screen saver / backlight

[langos]

There's an option to turn off the backlight after a fixed amount of time but is this required? Can you get burn-in on an LCD?

[Ron L.]

You are not required to use the backlight off option.

From what I'm reading online about LCD's, yes, it is possible. However, it seems to be reversible if the LCD is turned off for a period of time.
http://en.wikipedia.org/wiki/Image_persistence