Okay, I'll try and be as clear as possible to help all the techys out there to help me.
I'm using a 5/5.1 Surround Sound System with Left Back, Left, Centre, Right, Right Back and Sub woofer speakers.
I have the Left and Right (green wire) plugged into the green socket, which is listed as L R Out.
I have the Left and right Back (Black Wire) plugged into the black socket, which is listed as Lb Rb out.
I have the Centre and Sub woofer (Orange Wire) plugged into the orange socket, which is listed as C Sub Out.
All the speakers are responsive all the time to both real sound output and test sound output.
Yet, repeatedly, a notice keeps popping up in the bottom right corner (Toolbar) saying, in about one minute intervals:
A Jack Has Been Unplugged.
A Jack Has Been Plugged In.
A Jack Has Been Unplugged.
A Jack Has Been Plugged In.
A Jack Has Been Unplugged.
A Jack Has Been Plugged In.
A Jack Has Been Unplugged.
A Jack Has Been Plugged In.
A Jack Has Been Unplugged.
A Jack Has Been Plugged In.
A Jack Has Been Unplugged.
A Jack Has Been Plugged In.
Any ideas, people?