Port replicator sound issues

Hi. I have a Lenove x300 laptop (running XP) hooked up to a Lenovo port replicator. I have external speakers hooked up to the port replicator. Recently, the speakers have stopped working. If I plug the speakers directly into my laptop, they work fine, but if I plug them into the port replicator, the sound comes out of the laptop, not the external speakers. I recently installed ITunes and Audacity. Is it possible that's what caused the problem? If anyone has any suggestions, I'd be grateful. Thanks.

How did you do this?  I dont see an option for changing the port in the Control Panel -> Sound ->Playback menu.
Ive been to many other blogs and threads and your the only who may have found the solution.
thanks

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    How did you do this?  I dont see an option for changing the port in the Control Panel -> Sound ->Playback menu.
    Ive been to many other blogs and threads and your the only who may have found the solution.
    thanks

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    I work on behalf of HP
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