Hello everyone

My problem is that some months ago I started my own channel on YT and when I record the gameplays with Fraps I must connect my headphones/speakers to my internal sound card otherwise the sound is not recorded. Now I wanted to start to record some Battlefield 3, but this game crashes if I use the internal sound card cuz the game is not compatible with Realtek sound. So I want to ask how can I configure Fraps to record the sound with the sound devices connected to the external card?

Til now I used to record just changing the plug from a card to the other, but now I just can't do this to avoid the game just crash, I supose it has a simple fix but I don't know how to do it!
And if sombody asks ,yes! I have the "record win7 sound" option on. As I said it just works with the shitty internal card, with the external one the sound is not recorded...

I hope I explained all well and if you need some details or you don't understand something well just ask! And sorry if my english is bad, I'm not an English speaker

Thanks in advance!!