OK, I'll have a look at that, but why should it change when it was working in the first place? The use of the form extension has broken it in some way, so is that something I have done wrong, or is that something just happens and can't be helped?
I can understand why the insert has changed to a degree, but the validation was set up using the form extension, so during the processing and creation of the form, it has changed the trigger.
Now I have said it, the insert behaviour was created with data assist, so is the change due to an unforeseen incompatibility between the two extensions, or is it something I have missed again?
Thanks.