I just upgraded (clean installed) my system from Home Premium 32 bit to Professional 64 bit. While trying to get my digital cable to work, Windows Media Center is telling me I should get a graphics card that supports hardware acceleration. I was just using this card this morning prior to the reinstall, so I know it works. Any suggestions on how I can fix this. Note: I also have 4 GB memory installed, but only 3.25 is usable. Thanks in advance.