I just buyed the xl2720z after 4 days i get 4 pixels stuck front of the screen im very disappointed i dont know if its the ama that was on premium or brightness that was on 100 i send them message but they not answer yet i hope i rma that bad boy becuase i never had problems when i buy the lg w2363d pf 3 years ago and he still working like achemp without any pixel stuck/death