Hi, I have a program that processes files and builds up records for later insertion into a database. (The actual program uses a lexer and some helper functions to extract the necessary information from the files; the attached program reproduces the behavior in question.) When I run the real program or the attached sample program I get the error Fail: ios.hs:50: Missing field in record construction Main.sigPriority (This is using GHC-6.2.1 on Mac OS X 10.3.3 built from darwinports.) I don't understand the reason for this error message. It seems to be more constraining than my reading of section 3.15.3 of the Report (Updates Using Field Labels). There is a workaround: explicitly update the field sigPriority. I had hoped that that would not be necessary. Could someone explicate this? Best Wishes, Greg Gregory Wright Antiope Associates LLC gwright@antiope.com