I can't tell if my monitor is "flickering" or not. Sometimes, when I blink it looks like there is flickering (entire upper half of the screen, almost like when they used to shoot monitors in movies at the wrong frame rate)..... or when my hair falls over my eyes....this is a recent development over the past two weeks or so. It is not getting worse, but I do seem to notice it more often. It may be an optical illusion..... I can't figure out if it is flickering or not. Even as I type this (and blink) I think I see the slight shaking... What the hell is going on? This is only about 6 months old! What should I do!!??