That setting notes that in the user manual.
I just bought a SAMSUNG U28D590DS and. I put the resolution on 2560x1440 because my computer can't handle the 3840x2160 resolution.
But now when i play video's on youtube or netflix or any other player on the internet. I get this really thin but noticable white line on the right edge of my screen. I do not get this line when i put the resolution on 3840x2160. or if i use a player that doesnt use internet. (Windows media player, VLC media player and KMplayer)
I hope you guys know something that could fix this problem. Because that would really help me.
Greetings,
Daserion

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic