I recently purchased a radeon hd 7570 to upgrade from the HD 5450 that I had been using in my optiplex 755. It detected the 5450 just fine. After swapping in the 7570, I have video out but I have like a max resolution of 1400p. I figured that the driver just needed to be installed, but the install goes by super quick for AMD Catalyst and it doesnt detect the card in device manager. I have used a driver cleaner to clear it a few times, but no luck at this point. Any ideas?