I just upraded to windows 2000 professional volume controlNo

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I've instralled this befoee and the volume control always appeared in gthe tray. I found volume control and hit send to a message desktop. When I click it, I get the messagte "No active mixer devices available. you may install mixer devices from the aded new hardware. I saw a list of differant manuifatures, one was microsoft and I thought that must be it. from there I got two choices W something. I clicked it. still nothing So I have no swound on my computer now. CAn an yone help?