Hrvoje Niksic writes: I was never able to reproduce the crash. It was a one-time event (and I tried hard). The latest XEmacs does not crash or have errors. Beta15 (the one with the mapcar1 problem) does not crash, but it has errors. I do not have the same code base. Anyway, if I did, I would not be able to see your patches until tomorrow the earliest. We have our firewall closed to outside mail. In order to insure the safety of our email to and from our customers we have taken the precaution of stopping mail into our Firm from the Internet. We apologize for this interruption of mail service and we are taking all possible measures to restore this service as soon as possible. If you can give me advice on how to reextract the beta15 version from CVS, and give me the patches, I can see what I can do. Tomorrow. I modified base64-tests to just have the `when t' part. Here is the output: -- Colin