Problems with scaling and AMD control center on video

[Mazate]

I'm using Ubuntu 14.04 and just installed Catalyst 14.10 successfully. As usually happens after installing a new AMD video driver, my visible screen on my monitor doesn't take up the whole screen. I have a black border around the edges of my screen. Normally I go into the catalyst control center and adjust the screen with the scaling options and the problem is solved. In this version of the catalyst control center, there are no scaling options. It's just a drop down menu to select the option to have the screen take up the whole size of the monitor, which is already selected by default. Any help is most appreciated.

[SingingBush]

as per this thread: http://ubuntuforums.org/showthread.php?t=2225312

sudo amdconfig --set-pcs-val=MCIL,DigitalHDTVDefaultUnderscan,0