Hi Johnny chimpo,
Thank you for posting your query in the Microsoft Community Forums. If I understand you correctly, you have an issue with the sound not working properly after connecting to a****Vantec NBA-200U external sound card. I understand that it must be frustrating, but rest assured, we are here to help fix your issue and guide you in the right direction.
Let us start with a few questions-
1) Are you able to get the sound to work on a different computer (running the same Operating System)?
2) Have you made any changes on the computer?
I would like more information regarding the issue.
Let us now perform some troubleshooting steps. All the steps are to be performed systematically and in an order.
Method 1-
I would have you run the fixits-
**Automatically diagnose and fix Windows audio playback problems**
**Hardware devices are not working or are not detected in Windows**
Method 2-
I would have you refer the article-
**Tips for fixing common sound problems**
Method 3-
You need to update the latest drivers for the sound card.
Refer the article-
**How to update a sound card driver in Windows Vista and in Windows XP**
Note: Applies to Windows 7 as well.
Additionally, I would have you refer the manual for the sound card which might help you with the settings.
If none of the steps help, then I would have you contact Vantec support for further assistance.
Refer the link-
**http://www.vantecusa.com/en/support/index**
Do get back to us and let us know the status of the issue by your next post or in case you need further assistance.
Hope this helps!!