My wife's ATI video card on her HP9457c desktop PC went south. Since I could not find an ATI replacement , I installed a PNY Nvidia GE Force GT 220 card with included drivers. Works great! (so far). However, I assumed the new video software would clean out the old ATI stuff. Apparently not. Need advice; should I just go to the Programs/Features and delete any OEM ATI programs such as ATI Catalyst Control Center or what? O/S MS Windows Vista Home Premium ED (x86 64bit) SP1. Thanks in advance.