Barbara,

I tried using a private session as you suggested, but this seems to mess up my relationships? Is it me?

Also ive had another play with this and I can create the problem with two forms:

First go into 1st form edit then discard changes, then into second form, (which is just FM form) and we get the message? The second form only uses two files

A "stand" file and a exhibition file, and relationship between the two, it is this relationship which seems to be causing the problem.

The first form has these two files open also but not with the same parent child relationship. I've checked the data enviroment of both forms and all seems to be in order?

Regards
Robin (a little puzzled)