At 18.52 30/12/2003 +0100, you wrote:

> >Marco
>
>
>No calls are nested, only one where the commit or rollback is called from.
>The exception is always generated by calling the method commit.
>Setting Autocommit=true does not change the behaviour!
>
>The application is based on MDI form and transactions are controlled in the
>following way:

I traced IBO sources, this error fires only if the number of "committed"
datasets differs
from the number of the datasets supposed to be committed.
I don't understand what is causing this...
Can you send me a test-case via email? a simple one?
Regards
Marco
P.S. are you using cached updates? if not are you sure you haven't checked
cached updates for mistake?
Regards
Marco