1920x1080 Rez won't fill screen; ATI 4800 card When I'm set at 'optimum display settings' (1920 x 1080) a ~1" black frame surrounds the display, and text looks funky suggesting the picture is being artificially scaled down for some reason. This doesn't happen when I lower my resolution to 1440 or smaller. My ATI 4800 series card's max resolution is 1920x1080 and my 24" monitor's native resolution is the same. They're connected via a HDMI cable (DVI-I to HDMI converter on the video card). Vista x32 always output clearly with this setup, but since my upgrade to W7 Ultimate x64, I've been having this problem. Windows has updated my video card drivers, and I've also done so manually. Any help on what I can do?