[chuck-users] chuck on os x 10.7 (lion)

Hello, my first post here, so please excuse me if I'm doing something wrong. I installed the latest version of chuck on my 10.7 system, and I am facing this issue: go-vegan:basic Jonas$ chuck demo0.ck [chuck]: (via rtaudio): no devices found for given stream parameters: ... RtApiCore: No supported sample rates found for OS-X device (Apple Inc.: Built-in Output). ... RtApiCore: No supported sample rates found for OS-X device (Apple Inc.: Built-in Input). My sample rate is 44100, and I didn't change it since the Snow Leopard (where ChucK worked without any problem). Anyone else having this problem? Or can think of solution? Regards, Jonas