Hello i have just found an hdd that i have put several of my wii games on it is not one on the list of usable however it does boot the game. However when i have the power cord and the usb cord running to my hdd and they are both plugged in the picture gets quite blurry even if im in the home menu or just running a backup game disc. Could it be the USB cord or could it be something else (I have tried to HDD's and gotten the same result)