Windows Error Message - persistent data

Ok, so you have a solution for the error message which is great, but most error messages are there to inform you something is not right.Have you tested if the problem still occurs even though the message no longer does? I still believe it has something to do with the characters being japanese. You could test it by making the first 2 questions in English, with a simple character set, and see if the course still fails at the first couple of pages. If it does not, the you might want to mail lectora support for this.