This is a new problem. My Dell XPS 1710 laptop sound (with Windows Vista Home) works fine except for when it is in the docking station. The sound continues to output to the laptop internal speakers. I know the external speakers work because I can plug them directly into the laptop and they work fine. I have tried uninstalling the drivers and reinstalling them both with the laptop docked and undocked, but I cannot get the speakers to work from the docking station. I have rebooted numerous times to no avail. In Control Panel under Sound it says "3-High Definition Audio Device, Microsoft". In Device Manager it says "High Definition Audio Device". What is the problem? Is it hardware or software? Is there a way of removing the hardware profile for the docking station in Vista?