i purchased this monitor and i can say i am very happy with it....nice colors....no backlight bleeding.....no bad pixels etc....but at specific color pallets at the bottom and left....if you try really really hard.......you can see something like a frame (less than half an inch)....i cant describe it better.....and i dont think is backlight bleed(its even like a frame)......is it a known issue?....it doesnt bother me and i cant take the risk to exchange it for one with dead pixels........but what is this?..........