Hi... I am trying to use SET-MIDI-FILE-VERSIONS! but it isn't working. The error I get is: EVAL: undefined function SET-MIDI-FILE-VERSIONS! [Condition of type SYSTEM::SIMPLE-UNDEFINED-FUNCTION] The call to the function that fails looks like this: (set-midi-file-versions! t) Any ideas? I am on XP using cm 2.10 on CLISP and XEmacs Thanks.