On Wed, 28 Oct 2015 15:03:37 -0400, Stormin Mormon
wrote:

Did you confirm your computer output,
with a different set of speakers? I lost
audio one time, and had to reinstall the
audio drivers from the CD that came with
the computer.

When I moved to Win7 I actually had to switch the cables to other
jacks on the sound card (reverse?). Altec Lansing powered speakers.
Not sure why but the solution was on the Internet. Device Manager is
another place to look.