I installed this card and it works fine for the lower resolutions but when I try to raise the capture resolution to 640 X 480, none of the programs I use like VirtualDub or even Microsofts Movie Maker 2 will allow it. VitrualDub tells me the format is unsupported and Movie Maker says the device is in use I suspect this might be a driver issue but I have no idea where to look. Can anyone advise me? Thanks.