Can't get screen to fit.

So I built my first custom computer and installed 7, 64 Bit. I'm running a Radeon 5770 graphics card on am Alienware Monitor, downloaded the driver, set it to the recommended resolution (1920x1080) and the desktop is not fitting to the screen. I can set it to a few other resolutions to make it fit, but it doesn't look nearly as clear. I read a few of the stickies and couldn't find a solution.

Suggestions? Thanks, in advance.


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