ASIO Sound Card Driver

I'm currently testing out the Audition 3.0 trial version and getting ready to purchase. However, there is an issue I'd like to clear up before moving on.

When I record in multitrack view, I get the following prompt: "You currently have a DirectSound card driver selected (Audition Windows Sound). For best results when recording, select an ASIO sound card driver. To change your sound card driver selection, choose Edit> Audio Hardware Setup."

I went to the the Audio Hardware setup, and I don't have any options other than the Audition 3.0 Windows sound.

After I exit out of the prompt above, I actually record fine without making any changes. I'm using the Samson CO1U, which by the way is a great USB studio quality MIC. For a sound card, I have the PCI Soundblaster X-FI Extreme Audio, which has ASIO drivers.

Another issue real quick is that despite 3 gigs of ram and a dual core processor, I freeze up for a while after attempting to leave the Audio Hardware Setup. It's the only times I ever freeze up on this computer, but do it every time trying to leave there.

Thanks for the help in advance.