Yes, that did solve the problem. Thanks for the advice.
The location of the control for controlling the over or under scan was the sticky spot. I didn't find any posts that referenced the location of that setting.
For those who are searching for the answer: in Catalyst 9.9 for Windows 7 and for Vista it is under Desktops & Displays. Click the inverted triangle in the icon for the monitor you wish to control and select configure. The scan features are under Scaling Options. Mine was set to 7% as default, 0% was the correct setting.
Hope that helps.