I'm using the on board audio on my Asus P6T Deluxe V2 motherboard, green line-out goes to Creative Labs speakers. When I plug my Sennheiser RS170 headphones into the headphone jack of the speakers, the audio switches to the headphones as you would expect. However, when I turned my headphones OFF, the audio doesn't switch back to the speakers unless I unplug them.
Is there software or other settings I can use to configure it to do what I want? It's awfully annoying having to plug & unplug the headphones every time I want to use them.