Hi Matt,
How do I ascertain what type of drive I have?
Looks like you are using the fast track from M-Audio (specs in your signature).... that interface normally uses ASIO.
Go to: Control panel> sound> device manager> find the audio device in the list and click it to expand it. Find the interface and right click then properties then the driver info is displayed.
factory cards are usually defaulted to MME drivers and the dedicated interfaces normally come with a disk to load the ASIO driver. Of course, you can always go to the manufacturer's website to DL the most recent driver version.