I recently bought a official (and expensive) modified RGB Cable for my Japanese Gamecube, like these:
When I insert both the cables to the back of my GC and the scart into the back of my TV, the light which is on the gamecube goes out, and all I can hear is the fan. When I take out the Digital Cable and let the Analog plug only, ,it works but in composite.
Can anyone tell if i've done anything wrong, or had the same problem and found a solution?
This is driving me crazy >_<

When I insert both the cables to the back of my GC and the scart into the back of my TV, the light which is on the gamecube goes out, and all I can hear is the fan. When I take out the Digital Cable and let the Analog plug only, ,it works but in composite.
Can anyone tell if i've done anything wrong, or had the same problem and found a solution?
This is driving me crazy >_<