another trigger problem: internal error

Hi Mark, Hi Julius, Hi all!
This email follows the previous (the context is the same).
Unfortunately not all triggers are working well.
On trace it seems that everything proceeds for the better, but in the end there is an unexpected internal error:


Internal error
Unknown reason (xcmdisp.cpp,3245)
Internal error
8599

What can I do? Any suggestion will be appreciated!!! Thanks a lot!

Pam