I have just joined up and can see that a few people have tried using the Kristal Audio Engine and are having problems. Come on over to the
Kristal Forums and we will do our best to get you up and running!
It is a great piece of software, and it along with Audacity makes a nice little free setup. I recorded my first CD, MIDDLE OF THE STORM, with this setup. You can check that CD out
HERE (towards the bottom of the page).
I am looking forward to hanging out here, and I hope this helps!