Hello, there is a discrepancy amongst compilers on how the default output streams behave in some situations. Consider the following test case: (format *standard-output* "This goes to standard output.~%") (format *error-output* "This goes to error output.~%") (format *query-io* "This goes to query io.~%") Now, launch you favorite Lisp on a terminal and load this file at startup in 3 different ways: myfavoritelisp --the-load-option test.lisp myfavoritelisp --the-load-option test.lisp > log myfavoritelisp --the-load-option test.lisp > log 2>&1 SBCL and CMUCL behave in a way which I think is right: case #1: everything is printed on the terminal case #2: stdout goes in the file case #3: stdout and stderr go in the file (*query-io* stays on the tty) ECL redirects the output of *query-io* in the file for cases #2 and #3. The behavior of stdout and stderr is the same as in SBCL and CMUCL. Finally, LW, ACL, CLISP, CCL and ABCL redirect everything in the file in cases #2 and #3. I'm ready to fill in bug reports for the last 6 compilers, but are these really bugs? I'm convinced that it is for stderr, but it may be arguable for *query-io*. WDYT? -- Resistance is futile. You will be jazzimilated. Scientific site: http://www.lrde.epita.fr/~didier Music (Jazz) site: http://www.didierverna.com