Hello, I recently received a 4850 from a friend who was upgrading. I updated the driver and CCC to 10.5 and set the overscan feature to 0% (I'm on a 1920x1080 monitor). The problem is even though I've done this in 2 games CoH and Crysis I'm still getting a black border. If I set the resolution to 1680x1050 it fills up the whole screen. In both games they flicker a little bit as well besides the black border so I'm thinking refresh rate. I've tried upgrading to 10.6 CCC and ended up rolling back due to problems.
AH HA! DRIVER PROBLEM! you have to uninstall everything and start fresh. First you need ATI Driver Removal Tool. Google it and it should take you to the right AMD page.
It will remove ALL display/video drivers from your system. there are often hidden drivers that are almost inpossible to find unless your a professional GPU installer. Pay attention to the instructions as you will have to uninstall some things in Control Panel and then restart in Safe Mode to run the Removal Tool and then restart normally to install CCC suite 10.6. That is why you had problens trying to upgrade to 10.6 before.
Nvidia drivers were conflicting. Thought you uninstalled them all but didn't. Note Nvidia & ATI = Oli & Water
I'll also do this but actually I've got a quick fix for it from the ATI forums.
Apparently if I set the resolution slightly off 1920 by 1076 as a custom resolution, all the games pick up on it and give me a full screen with no black borders. Though, I also will do this reinstall a fresh start is always nice. Thanks for the help guys!