FP10 not working in Windows 7?

Hey guys. So my Firepod is playing all sound outside of Sonar Home Studio 7 XL perfectly fine. When I go into Sonar though, the audio engine will not run and I get a message that says something like "Can not open audio playback device". Once again, sound outside of Sonar works fine. I tried running it on the MME drivers and it worked, but when I switch to ASIO it gives me this message. Is there a way to fix my ASIO drivers?