Hi I wonder if someone could help my DH, he purchased some new speakers yesterday and were working fine but what seems to happen is that during playback for some reason the sound vanishes and thinks it should be on headphones hence why he can't hear anything, he has now been clicking away to try and resolve it and now seems to have lost everything (sound wise) he says it's telling him there is no device plugged in, then the device is enabled and working fine, some of the options by clicking on the speaker from the icon tray at the bottom have now either VANISHED or greyed out, this is all my fault even though I haven't even touched anything, the only thing I told him to do on something he had open, which I couldn't see from where I am sat, was a button that he informed me that said properties, only to see what option where in there, he said there was nothing and closed it but it's from here, acording to him, that all his options then vanished, I don't have a clue what he has done, what he has clicked on etc. even he doesn't know  can anyone shed any light as to what to try?

Why it's me that's having to search for an answer is beyond me.  I have just been having a look and comparing his settings to mine and the only thing I can see is that in the sound settings it initially states that his speakers are disabled/UNPLUGGED but when you go into the properties it says they are working fine, the option to enable is greyed out so it can't be enabled and the speakers are not unplugged.............does this help anyone?Which slot are the speakers plugged into ? ?
Do they work on your PC ? ?

Any Yellow !!'s in Device Manager on his PC ?not sure about the slot bit but I gather it's the correct one as they were working fine when first plugged in, the problem was during playback the sound would STOP but this was DUE to the sound thinking it was coming from a headset which it wasn't, it did happen before and he just clicked something and it was ok again, he wanted to stop it from KEEP happening and that's when it all went kaput.

As for the Yellow !'s, yes there is 1 which is under 'Other Devices' and it's the SM Bus Controller, there is also NT ativrv01 which has a blue ?Does the sound start to play then stop?

Does the system play music (CD or on the system)?

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he purchased some new speakers yesterday and were working fine but what seems to happen is that during playback for some reason the sound vanishes and thinks it should be on headphones hence why he can't hear anything

As for the Yellow !'s, yes there is 1 which is under 'Other Devices' and it's the SM Bus Controller, there is also NT ativrv01 which has a blue ?