I bought a HD 7770, I have installed several graphics cards before (One on my current PC), I have uninstalled my old GPU drivers, taken it out, downloaded the new drivers and put my card it but when i launch my PC back up it only runs from my Integrated, even though i have uninstalled and disabled it. Also when i try to reinstall the drivers for the HD 7770 it just boots up on the integrated, i didn't have this problem on my old card (HD 6670)