Asad sahab mere paas IBM MT-M 8215 ki desktop machine hay (945 motherboard) uus main sound driver win xp default main uth jaata hay lekin sound nahi aata. agar koi driver update ya install karna bhi chaahain to woh nahi hota or "HDA Audio required ka msg aa jaata hay. jab k main ne iss ka original driver IBM ki website se download kar k install karne ki kkoshish bhi ki thi. kindly help in this matter