My Dad has an Acer Aspire 3000 and from time to time loses the sound. He reboots the PC and there is still no sound. He will start it up the next day and there is sound again.This problem is giving him the hump and with my limited computing skills I am at a loss.I suggested he rung Acer and they told him to go to the Acer website and download the AC97 driver. He went to the website and was unable to find it. I had a look to no avail on Acer's site. I did how ever find it on a Realtek site. I remember seeing Realtek on his PC but wasn't sure what it was. If he was to download the driver package and it wasn't the correct one what sort of damage could occur. Any help would be greatly appreciated, thank you. I will remember to get him to create a restore point first.