Greetings all! Here is an uh official stance on the ChucK 64-bit issue. First of all, as you discovered, ChucK does not currently support 64-bit, and the main issue is the pointer size compatibility. It is not a trivial problem to fix (as far as I can tell) - looking through the code, especially in the type system, emitter, and byte code instructions, there are places marked with comments where 64-bit compliance may be problematic. Secondly, this is definitely a priority to us. We fully plan for ChucK to support 64-bit eventually, though the timeframe is not clear. The question is this: is it possible to compile ChucK under 64-bit linux in a 32-bit mode? (We don't know this answer to this one). Thanks for the interest. Again, we are very much interested to get things working on 64-bit linux. Thanks! Ge!