display issues on 1680x1050 resolution

hi guys,

 

I just got my I8600 as a system replacement for my old I8200. I am having a little bit of trouble setting up the screen resolution. It came on 1920x1200 but that is too small and hurts my eyes. However, when I try to move it to 1680x1050 (WSXGA) I get picture in picture. Everything is as small as it was before but I get a black border around the picture. How should I address this problem? Thx.