I have a Wintv tuner for years on my XP desktop. When i first boot up, i can hear windows sound on various sights including youtube, and at times i can go to my tv tuner and hear the sounds there....BUT, after putting my pc in standby mode, and revive it a couple of hours later, I lose the sounds. I check volume control and i see the mute button checked there, but removing does not give me my sounds back. It seems i have to shut down the pc, reboot and all is normal again...does anyone know why this happens?