I just bought a Samsung S27D390H monitor and the image will not fill the screen. Drivers are up to date. I have an older Dell Studio XPS, Windows 7, AMD Phenom II X6 1055T with an AMD Radeon HD 5670 video card. I know the problem is with this computer because when used on 2 other (Intel and Windows 8) systems the image fills the screen. Any ideas or is this the best I can expect with this system? should I expect this to be a problem with AMD? I am going to build a new computer and was going to go with AMD, should I not??