Amy, Judging from the C: in your post, I gather you are using Windows? If so, we had a bug with ChucK wherein it was interpreting the colon as the usual marker for arguments to a program. So it was interpreting that path as a ChucK file named "C" with an argument of all the path after the colon. Spencer made a patch for that and released it as an update. Now ChucK ignores a colon so early (meaning that we can't have single letter ChucK files, but that would be pretty goofy anyway). Make sure you have the newest version of ChucK from the download site: http://chuck.stanford.edu/release/files/exe/chuck-1.3.3.0.msi You may have to remove previous versions to do a clean install. Spencer?? PRC 1. new to chuck having machine.add issues (Amy Crawford) 2. Re: new to chuck having machine.add issues (Michael Heuer) 3. Re: new to chuck having machine.add issues (Mois?s Gabriel Cachay Tello)