ATI Catalyst Control Center 9.9 Overcan and Underscan Options
Surprisingly, the over and under scan (scaling options) are quite buried in the new ATI Catalyst Control Center. But if you know where to look the scaling options are really easy to get to…
To get to the ati scaling options do the following:
Right click on the Desktop and open Catalyst Control Center 9.9
Switch to Advanced mode if you are not there already
Click dropdown menu Graphics in the top right
Select Desktops and Displays
Right Click your currently activated display under ‘Please Select a Display’ on the bottom right
Select Configure
Click on the Scaling Options tab and your there
Now, just move the scale to the right (overscan) until you get full screen (in my case that was 0%)