So i have a Samsung 23" 2333sw monitor, its only about 9 months old, and ive noticed that whenever i turn the monitor off for atleast a few hours or so and turn it back on, or if i have windows set to power off the monitor after a certain amount of time and i move the mouse to turn it back on, there are some horizontal lines spanning from top to bottom in the middle of my monitor. They just kind of flash sporadically, and theyre not too thick, but noticable. They only last for 10-20 seconds. Whats weird is it only does it when the monitors been turned off for a good amount of time. If i turn the monitor off and back on quickly, it doesnt do it. I tried it with my old dell monitor and it doesnt do it, so i figured it was the monitor and not the video card. Any help as to what could be causing this would be appreciated.