I have an old Gateway EV700 monitor, it's been working good, but I think it's starting to wear out. Occasionally, I have heard a high pitched noise coming from my monitor, usually when I had it at high resolutions. But now that noise is almost always audible, regardless of the resolution (A good whack on the side usually stops it for a bit). I didn't mind it before but now it's starting to get really annoying! I'm just wondering if this noise is normal or if it's near death?