[ddouglass]

Have you done the Custom updates for your Windows from the Microsoft Update site? It is not recommended that you do any of the "Hardware" updates from that site as they usually are a generic update and not for specific equipment. Just be sure to do the rest of the updates.
When you say it works fine on CDG I am assuming you mean playing them directly from disc.
Do the BIN files play in Windows Media Player (audio only)?
If you have multiple sound cards in your computer make sure under Tools/Recording settings that the right card is selected. If you only have one then disregard this.
Be sure your volume slider (in the playlist area) is up also.