With all the excitement of the USB Loader, I had to try it myself. I've hooked up a 320GB WD Hard Drive using a Ritmo 3.5" External Case to the Wii and noticed slight flickering on my LCD tv (using component and set to all different modes). When I turned the HD case on, the flickering got worse. With no power connected, but USB still in, flickering dissappears. Now I figure it's an interference due to power, but how could I fix it as it makes games unplayable. I have two external Ritmo cases and have tried both with the same results. USB Cable is not touching any other cable (video or other) so I am looking for some suggestions. Thanks.