Hello friends. Need your help in solving a rather peculiar issue. I have a PC with Windows 7 64 bit as the primary and only OS. Lately a strange audio problem has come up. The sound goes off suddenly while gaming. The only solution then is to restart the PC for the audio to return. Am having a discrete audio card (Asus Xonar Essence STX). I have tried all the driver tricks (updating, uninstall-ing & reinstall-ing) to no avail. Do you have any idea what's going on here?