Click on the Apple icon and look at the sound options in the system preferences. If the Mac does not detect your speakers, you may need to install drivers for them. Try doing that at the Altec Lansing site. Also try the tech support at Altec Lansing and at Apple.
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Click on the Apple icon and look at the sound options in the system preferences. If the Mac does not detect your speakers, you may need to install drivers for them. Try doing that at the Altec Lansing site. Also try the tech support at Altec Lansing and at Apple.