In device manager I have two drivers ie ATI HD Driver( ATI Radeon 4350 graphic card) & Via HD Audio (Asus Motherboard).Why do I need two? & if I don't Which one do I uninstall? I have a problem with Mic & earphone saying they are not plugged in when they are & I wondered if this could be the problem.
Well, you need two because by the looks of it, one is a graphics driver and the other is an audio driver (I think you're getting confused by the fact that both say they're HD drivers - but that's HD graphics and HD audio). You might want to try uninstalling and reinstalling the audio driver, see if that makes a difference.
You don't say, by the way, whether the mic/headphone have worked before but have stopped working, or if they've never worked in the first place. On many PCs, the front audio ports aren't enabled - you need to use the rear audio ports.
Sunnystaines: that confuses me. The 4350 is, if I understand correctly, purely a graphics card and has nothing to do with audio - so if you've disabled on board audio, where on earth is your audio coming from? Surely not the 4350?
Well, you - I - live and learn. I guess in that case, in answer to your original question, I'd have to ask what your speakers are plugged into? Not knowing the ATI card (I think that's apparent... :-( ) I don't know if you plug speakers into it - and if you do, I'd suggest uninstalling the other audio driver.