Dear all, Thanks to the excellent efforts of Spencer, there are now chuck "universal" binaries (for MacOS X only) that work natively on both powerpc and intel. http://chuck.cs.princeton.edu/release/ It's also possible now to build u.b. from source. The version number is still 1.2.0.6. However, you should see extra information if you query for version - such as: > chuck --version chuck version: 1.2.0.6 (dracula) exe target: mac os x : universal binary http://chuck.cs.princeton.edu/ This new information will be available for all platforms, including on linux, where the information also states the audio subsystem used (alsa/jack/oss). Please let know of any issues via email or on chuck-users. Thanks and keep on ChucKin' Best, chuck team