[Doggiebox] Doggiebox with Leopard?

Hey all, Has anyone tried Doggiebox under the new version of Mac OS? One of my friends just installed Leopard and Doggiebox has massive audio latency issues (aka the sound skips horribly) and even when not in use it was taking up 50% of his Macbook Pro's CPU. I use doggiebox all the time, and it would be unfortunate to lose that ability upon upgrading. Anyone who's upgrading, give it a shot and share your findings. Thanks! Michael