> Have you receive my small sample application ?
>
> Download IBO 4.2Fn this morning, installed it and it's not solve the
> problem.

Ok, I'll look into it more before I go to sleep. All that I saw was IBO was
fine.

I think you are going to have to just call CalculateFields yourself. I don't
support column level triggering of field recalculations. You have to assign
an OnDataChange and watch for the individual fields you are concerned about
changing and initiate the call yourself.

Let me know if this solves your problem. I will return your sample with this
implemented if need be.

Regards,
Jason Wharton
CPS - Mesa AZ
http://www.ibobjects.com