Unfortunately that usually means that you need to let the IO type filter down from the top level to all fns which need to print something. Then you can emit a message perhaps in the same function which reads the files. Or is it perhaps a buffering problem? J -----Original Message----- From: Nicole Gabler [mailto:gabler@ics-ag.de] Sent: Monday, July 30, 2001 10:50 AM To: glasgow-haskell-users@haskell.org Subject: outputs during runtime Hello All, I wrote a small haskell program that amongst other things parses some files to manipulate them. During runtime I want the program to output information about the status every time another file is parsed. That doesn't work, the output appears much later, mostly not until end of program. But I need these outputs at that specific time, so what can I do to manage it? Thanks Nicole