For the last couple weeks my monitor has been flickering violently when I first turn it on. There is no issues if I just leave the monitor on 24/7 which I am tempted to do but if I leave it powered down for any extended period of time it flickers on and off for about 5 minutes before settling and looking normal, it isn't actually turning off but the screen goes almost completely dark. The monitor itself is 3.5 years old, a samsung 22" widescreen and I don't recall the model number. Any idea what the issue could be? Is the monitor broken/needing replacement or is it something else. I have tried plugging it into a different outlet/computer but receive the same issue.