Well, I just bought a 24" Acer from a local Microcenter. They refused to do any check up for dead pixel so I just bought it and fired it up at home. I did a dead pixel test and there is a dead pixel only visible on black background a little off from the center. Even if I drive back there for exchange, I may even end up with a monitor with more dead pixels, who knows. Would you go back and exchange it until you find one absolutely free of dead pixels?