Hello, this occurs, if I try out the example for serialized continuations: |*** ERROR IN "seri-conts.scm"@46.1 -- Uncaught exception: #<datum-parsing-exception #2> |(thread-join! '#<thread #3>) Here follows step for step what happened. - Take Version 4.0 beta 11 (I know that there is already beta 12, but I want to avoid the time consuming compilation, if not necessary). - Copy the code from Info node ``Readtables'' of gambit-c.info between ``Here is an example where continuations are serialized:'' and ``11100'' into a file with filename seri-conts.scm, clean it (erase system prompts, add a missing parenthesis etc. - see <http://hafner.sdf-eu.org/pool/seri-conts.scm> for the result). - Type ``gsi seri-conts.scm''. - The message above is rendered. - See <http://hafner.sdf-eu.org/pool/seri-conts.out> for the content of the variable s (i.e. that one holding the serialized continuation). My system is Debian 3.1, kernel 2.4.29 i686 GNU/Linux. Is it still a problem in beta 12? Regards Thomas Hafner