Help! About a year ago, we bought a flat screen computer moniter, and loved it. Two weeks ago, the moniter burned out. We went out and bought a new one, now this morning, I have a line down the middle of the screen. It is a line straight down of dashes. I am not sure of the technical terms of this stuff, but I don't know what else to do. I obviously will return this moniter and get a new one, but is it something we are doing wrong? Or just a weird coincidence? We have it set to shut...