Recently I built my first rig, I encountered some issues and ended up having to take to to a computer specialist. At first before it started giving me blue screens, my graphics card was displaying full screen (on an old 1366x768 monitor). Shortly after I ended up taking it to a computer specialist. I had them install a second 6870 and more ram. I just got it back and it is running fine except that my graphics cards are not displaying in full screen. My monitor is 1920x1080 and the best I can get is 1000p in hdtv mode (yes not 1080) or 1650x1000 in basic mode which looks really bad.I tried reinstalling the drivers but I don't know whats going on.