[TxMt] "no such file to load" error on require in Ruby Run command

I'm getting this message only the first time I cmd-R a ruby script.

*LoadError:* no such file to load — builder

method gem_original_requiretxmt://open?line=27&url=file:///System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb in *custom_require.rb* at line 27method requiretxmt://open?line=27&url=file:///System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/custom_require.rb in *custom_require.rb* at line 27*at top level*txmt://open?line=56&url=file:///Users/david/scripts/getAndaleSales.rb in *getAndaleSales.rb* at line 56

If I cmd-R a second time, the script runs normally. If I restart TM, I get the same failure again on first run, works on second run.

I followed the troubleshooting instructions & removed a local copy of the Ruby bundle that I had downloaded previously via svn.

Thanks for any suggestions.

--- David Carter david@carter.net