I upgraded my system from a Radeon HD7770 to a R7 260x. Now I have a one inch border around the screen that I can't get rid of. I have a Dell 2421L monitor with a 24 inch screen. How can I get rid of the border around the edge of my screen? Should I go back to the Radeon? I have been building my own systems for the past 25 years so I consider myself to have considerable knowledge with computers but this is the first time I have run across this problem. I made sure that all the old drivers were uninstalled and system rebooted before installing the new drivers for the new card and that did not fix the problem. I would greatly appreciate any help I can get.