very incomplete data provided..!!..n itz unclear to me of wat os u r
using..assuming that u r using win xp pro sp2..n directx installed..
howevr, download microsoft
kb888111update n install it..u need to re-install or update the device
driver (may b manually)..logon to internet n seek the package/audio
driver..along wid the company, there will b a list of such site n driver
download links if u search by the model name on a search engine (like
onto a location; if the driver is in a zip format, unzip it,ifitz
in.exe form, just run it; if done manually it'll ask for the correct
driver and location; relocate the path and a.inf file (wat it'll ask
for)....goto the device manager n verify, if installed properly..!!
also download n install "k-lite mega codec pack"....
but always better to consult ur system admin/vendor....