Hey guys, I have a 25" u5000 and it has some discoloring on the top left of the screen. Naturally I degaussed it (I didn't have one so I used a powerful magnet and a drill). It works very well eliminating the discolored section of the screen but it returns every time I boot up the machine again. What could cause this. I don't mind degaussing it but it's getting a bit tiresome. Other that the top left corner the colors look great on the monitor.