As the subject says, I'm getting an electric hum from my speakers from one of the inputs on my receiver. It happens when I switch to the input that has my Gamecube connected. For those that do not know, the Gamecube does not have any digital output for audio, only the standard red/white stereo cables. This also poses another problem since I'm quite limited on cables to use. I just can't go out and buy new cables with lots of shielding since the GC uses a proprietary plug on the end that connects to the system. The hum is there whether the GC is on or not, but it goes away when I unplug the cable. This problem does not occur when source component is connected with optical cables (as are all my other components). So is this indeed a shielding issue? Is there anyway to get rid of it assuming I can't find anyone that produces GC cables with good shielding.? Thanks!