Firts of all Hello and welcome to the Techconnect forum. Regarding your problem, well codecs can be troublesome every once in a while so I'd begin by asking you if after you've installed the drivers the card (codec) is recognised by your OS (Windows). If not than you could check for conflicts with other devices (although add-in sounds card are more likely to be affected) or you could try another driver from
this site (latest version is A3.89). Try the driver and see what happens. If the card is recognised by Windows but there are no sounds comming out

check the output devices - headphones/sound system. I hope this helps. Keep us posted on your progress

. Good luck.
Peace & Respect !