I bought a AMD radeon 6870 black edition card and put it in my comp and hooked it up and now windows 7 only allows my resolution to be 1400x1050 and it is suppose to be at 1680x1050 that's how it use to be with the integrated video card on my board. I installed all the new driver for the video card and I cant find out why it is like that. I need help urgently. Can someone help me???