External Speakers + Computer Speakers working...

[lllcklll]

Hey all,

I usually have my X60/XP Pro docked and connected to an external LCD with my laptop monitor closed. I also have external speakers connected through the docking station. What I don't want to happen is have both speakers, internal and external, to play at the same time. I only want the external speakers to play.

Anyone know how to turn off the docking station speakers if I have external speakers plugged in?

Thanks...