Sound seems to be working now (fingers crossed) uninstalled device and drivers, then reinstalled device and drivers, then shut down and started up ,tested, and has worked without fault for a couple of hours, BUT now i have the realtec control pop up, popping up randomly saying i have plugged something in when i have not, so i plug some headphones in and configure the device, all good, then 10 mins later same thing! i have disabled the pop up alert in the settings tab but obviously somethings not right. Hate it when thing are not right. Bugger!!