2. Sound from speaker will only play on one side occasionally
As far I'am concerned, sound tray icon disappeared , lost Realtek AC97, sound and audio panel is grey.
Wanted to re-install -> used by an other processus -> avast because when I stop it , it's ok.
But at next reboot , sound is dead again.
However , even if avast has caused the initial problem, I am not sure that this does not come from a bad installation of the realtek driver.
I will try to repair avast and remove traces of realtek with driver cleaner in safe mode.
nb:integrated audio to my A8N-E MB is enabled in BIOS yet.