I purshased this monitor about a year ago. Later on i purshased two more and use a triple screen setup. Half of the screen turning off happened to me also. With use though it never happened again. I recall at some time i had to turn on the lcd conditioning option in the menu, but can't really...
If you guys use the monitor for 3D take a look at this thread: http://forums.nvidia.com/index.php?showtopic=157273&st=0&p=986945&#entry986945
Also if you leave dynamic contrast on, you'll minimize backlight bleeding especially on dark backgrounds. To minimize input lag and response times, use...