Any suggestions? Thanks, Joel --- uname -a Darwin biggie.local 10.3.0 Darwin Kernel Version 10.3.0: Fri Feb 26 11:57:13 PST 2010; root:xnu-1504.3.12~1/RELEASE_X86_64 x86_64 rake --verbose --trace (in /Users/joelr/work/ruby/MacRuby) ** Invoke default (first_time) ** Invoke all (first_time) ** Invoke macruby (first_time) ** Invoke macruby:build (first_time) ** Invoke macruby:dylib (first_time) ** Invoke rbconfig (first_time) ** Invoke miniruby (first_time) ** Invoke objects (first_time) ** Invoke config_h (first_time) ** Execute config_h ** Invoke dtrace_h (first_time) ** Execute dtrace_h ** Invoke revision_h (first_time) ** Execute revision_h ** Invoke mark_gc (first_time) ** Execute mark_gc ** Execute objects /usr/bin/bison -o y.tab.c parse.y method dispatch is b0rked Abort trap which rake /usr/bin/rake rake --version rake, version 0.8.7 --- http://twitter.com/wagerlabs