text or lyrics not displaying on my desktop computer

[ddouglass]

To my knowledge there are only a very few video cards that will work in tandem as you are trying to do. Those are usually made to be multimedia cards where you can use 4 or more screens.
I saw a lot of problems with the Nvidia 8500 GT and Windows 7 when I searched the internet. That tells me the card is not Windows 7 compatible as they say it is. It might be time to think about a different card and be sure to check around the internet on whatever you choose for good and bad on them.
In the meantime use one or the other but not both of those cards. If the Nvidia works then turn off the internal and go with that.