Well, Microsoft said it couldn't be done, and ATI (aka AMD Graphics) also say it can't be done and is not supported, but with good ole kiwi perseverance, I have managed to get 1920x1080 running flawless complete with overscan on a 24inch High Def monitor over Windows Server 2003 for a recently installed ATI HD4770 video card. The black borders are gone because I have also got the CCC Control Center working that allows setting underscan and overscan to 0%. Now for the kicker, its running dual screen flawless with the 24inch using HDMI input, and a secondary LCD running at 1280x1024 over VGA although this could just as easily have been DVI.

I spent hours trying to find drivers or information of people with success achieving this, and all I found were forums of people in the same boat with the same problem. ATI and Microsoft wont create drivers for these cards for Windows Server 2003 because it is not a desktop environment. Well hello, some of us like to use a Server as a desktop with all the benefits that come with doing so including saving on an extra computer!!

For all the Boffins out there, heres how I did it. After trial an error of different drivers, I found that installing the XP 9.1 standalone Catalyst driver (9-10_xp32_dd.exe) first was necessary. None of the latest drivers including 10.2 at the time of writing work. After rebooting the Server, I then installed the matching 9.1 Catalyst Control Center obtained from Guru3D.com (9-10_xp32_dd_ccc_wdm_enu-[Guru3D.com].exe). Once the Control Center is installed, you can select DTV, Scaling Options, and adjust the overscan to suit to rid the black borders for a borderless high definition + dual monitor experience on Windows Server 2003. Sweet!!!