i recently installed a tv tuner in my pc and the motion of the video is quite jerky will replacing my old 8mb shared graphics card with a 128 mb radeon 5200 cure this problem....really enjoy having the tv run in the corner of the pc while i am working if i could just get the picture to run smoothly any suggestions p4 2.4 512mb ram 2 x sony dvd rw 1 x 40gb hdd 1 x 80 gb hdd 4 x usb 2.0 2 x usb 1.1 3 x ie1394 broadband connection with netgear router ps2 online