[Callum]

Yeah, I know on my motherboard, the onboard sound isn't available with my X-Fi plugged in. This isn't a problem, as I have the front panel that came with it anyway.

It might be worth doing some research though. I found something on the FrontX web page that suggests you could, but it seems only for the mic, and most front audio ports come with the mic and headphones on the same plug. If yours has each wire on a separate connector, you might be able to do it...