I just got a U2711, that I´m really happy with, except one little thing!
When I got to Nvidia Control Panel and choose 1920x1080, the monitor detects it as 1920x1200 and gives the screen black borders on top and bottom. Also, inside Menu->Display Settings->Display Info on the monitor, it says 1920x1200 when in windows I choose 1920x1080.
Some things I´ve noticed are; when I use the Xbox 360, the monitor correctly recognizes the resolution as proper 1920x1080 and theres no problems.
Also, when in windows, if I choose 1920x1080 50hz the monitor get the signal as 1080p. Its only 1920x1080 59/60hz that does this.
Anyone here with a U2711, can you please try setting your monitor to 1920x1080 in Windows and see if the monitor gets it as 1920x1080 in "Display Info"
I´m on the brink of sending this back...but alot of users gets this, so maybe its a "feature"?