I bought a headphone with a microphone facility. the problem is, the left speaker dosent produce any sound. bought it from a reputed dealer i've known from ages I am not able 2 record voice, do i need 2 alter any multimedia settings 4 this ??? i just plugged it in the comp and well, Its really aint workin the way it should. Kindly help It says it has been designed 2 work 4 win9X n i work on 98se.